Extreme Mob Farming
The Matrix
Version 8

Update to my mob farm The Matrix. This version is a two story version of 7.3. In the first two test I've done so far it yield 152,940 and 153,940 items/hr. (Version 7.3 Here)

Had issues recording and running this at the same time, the best I could get was 150,600.

If you like to try it out, I would suggest turning all your settings down, it can be a bit laggy on most PCs

Longest fall time from spawn to death is still 1.7 seconds.

Build specs:
288 Spawing Towers double high
189 x 189 x 91 footprint
57,600 piston traps
Tall mobs only and the occasional slime.
Enderman free
Maximum time between mob spawn and death: 1.7 seconds

Behind the Scenes:

Transparent Fall Trap Texture Pack:
http://www.mediafire.com/?98yrqqqnkc0ko88