diff --git a/index.js b/index.js
index 529437e..ad13783 100644
--- a/index.js
+++ b/index.js
@@ -2,7 +2,6 @@
 
 var splicer = require('stream-splicer'),
   sort = require('./streams/sort'),
-  concat = require('concat-stream'),
   unstream = require('unstream'),
   nestParams = require('./streams/nest_params'),
   filterAccess = require('./streams/filter_access'),
@@ -55,14 +54,15 @@ module.exports = function (indexes, options) {
       .reduce(parse, [])
       .map(inferName)
       .map(inferKind)
-      .map(inferMembership));
+      .map(inferMembership)
+      .map(nestParams)
+      .sort(sort.bind(undefined, options.order))
+      .filter(filterAccess.bind(undefined, options.private ? [] : undefined)));
   }));
   /*
 
   return splicer.obj(
     inputStream.concat([
-      sort(options.order),
-      nestParams(),
       filterAccess(options.private ? [] : undefined)]));
       */
 };
diff --git a/streams/filter_access.js b/streams/filter_access.js
index 2e64d2d..b129023 100644
--- a/streams/filter_access.js
+++ b/streams/filter_access.js
@@ -1,7 +1,5 @@
 'use strict';
 
-var filter = require('through2-filter');
-
 /**
  * Exclude given access levels from the generated documentation: this allows
  * users to write documentation for non-public members by using the
@@ -12,9 +10,7 @@ var filter = require('through2-filter');
  * @param {Array<String>} [levels=[private]] excluded access levels.
  * @return {stream.Transform}
  */
-module.exports = function (levels) {
+module.exports = function (levels, comment) {
   levels = levels || ['private'];
-  return filter.obj(function (comment) {
-    return levels.indexOf(comment.access) === -1;
-  });
+  return levels.indexOf(comment.access) === -1;
 };
diff --git a/streams/infer/membership.js b/streams/infer/membership.js
index 2edd7de..7874020 100644
--- a/streams/infer/membership.js
+++ b/streams/infer/membership.js
@@ -88,7 +88,7 @@ function inferMembership(comment) {
   }
 
   if (comment.lends) {
-    return callback();
+    return comment;
   }
 
   var path = comment.context.ast;
diff --git a/streams/nest_params.js b/streams/nest_params.js
index 4f253f8..6efeeb5 100644
--- a/streams/nest_params.js
+++ b/streams/nest_params.js
@@ -1,7 +1,6 @@
 'use strict';
 
-var through2 = require('through2'),
-  extend = require('extend');
+var extend = require('extend');
 
 /**
  * Create a transform stream that nests
@@ -15,36 +14,34 @@ var through2 = require('through2'),
  * @name nestParams
  * @return {stream.Transform}
  */
-module.exports = function () {
-  return through2.obj(function (comment, enc, callback) {
-    if (!comment.params) {
-      return callback(null, comment);
-    }
+module.exports = function (comment) {
+  if (!comment.params) {
+    return comment;
+  }
 
-    var result = extend({}, comment),
-      index = {};
+  var result = extend({}, comment),
+    index = {};
 
-    result.params = [];
-    comment.params.forEach(function (param) {
-      index[param.name] = param;
-      var parts = param.name.split(/(\[\])?\./);
-      if (parts.length > 1) {
-        var parent = index[parts[0]];
-        if (parent === undefined) {
-          console.error(
-            '@param %s\'s parent %s not found',
-            param.name,
-            parts[0]);
-          result.params.push(param);
-          return;
-        }
-        parent.properties = parent.properties || [];
-        parent.properties.push(param);
-      } else {
+  result.params = [];
+  comment.params.forEach(function (param) {
+    index[param.name] = param;
+    var parts = param.name.split(/(\[\])?\./);
+    if (parts.length > 1) {
+      var parent = index[parts[0]];
+      if (parent === undefined) {
+        console.error(
+          '@param %s\'s parent %s not found',
+          param.name,
+          parts[0]);
         result.params.push(param);
+        return;
       }
-    });
-
-    callback(null, result);
+      parent.properties = parent.properties || [];
+      parent.properties.push(param);
+    } else {
+      result.params.push(param);
+    }
   });
+
+  return result;
 };
diff --git a/streams/sort.js b/streams/sort.js
index f8a9f73..490ff06 100644
--- a/streams/sort.js
+++ b/streams/sort.js
@@ -1,7 +1,5 @@
 'use strict';
 
-var sort = require('sort-stream');
-
 /**
  * Given a comment, get its sorting key: this is either the comment's
  * name tag, or a hardcoded sorting index given by a user-provided
@@ -32,7 +30,7 @@ function getSortKey(comment, order) {
  * @return {number} sorting value
  * @private
  */
-function sortDocs(order, a, b) {
+module.exports = function sortDocs(order, a, b) {
   a = getSortKey(a, order);
   b = getSortKey(b, order);
 
@@ -47,17 +45,4 @@ function sortDocs(order, a, b) {
   }
 
   return a.localeCompare(b);
-}
-
-/**
- * Create a stream.Transform that sorts its input of comments
- * by the name tag, if any, and otherwise by filename.
- *
- * @name sort
- * @param {Array<string>} order an array of namepaths that will be sorted
- * in the order given.
- * @return {stream.Transform} a transform stream
- */
-module.exports = function (order) {
-  return sort(sortDocs.bind(undefined, order));
 };
diff --git a/test/test.js b/test/test.js
index 4184651..0509ab0 100644
--- a/test/test.js
+++ b/test/test.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var test = require('tap').test,
+var test = require('tape'),
   documentation = require('../'),
   markdown = require('../streams/output/markdown.js'),
   outputHtml = require('../streams/output/html.js'),
@@ -36,7 +36,6 @@ test('external modules option', function (t) {
   }));
 });
 
-/*
 test('parse', function (tt) {
   glob.sync(path.join(__dirname, 'fixture', '*.input.js')).forEach(function (file) {
     tt.test(path.basename(file), function (t) {
@@ -55,6 +54,7 @@ test('parse', function (tt) {
   tt.end();
 });
 
+/*
 test('formats', function (tt) {
   glob.sync(path.join(__dirname, 'fixture', '*.input.js')).forEach(function (file) {
     tt.test('json', function (ttt) {