Ah hell Im bored already......
Top Hat mod
Get a length of rubber or vinyl tubing (5/8i.d.x 7/8o.d.), Stretch it over the stock top hat (this will take some work) then cut off the excess. This will make the stock top hat just 1/32 larger then the evolve top hat.
Bolt stop mod
For this you want to drill, dremal, or mill out the area between the stock bolt stop holes so that the end result looks like this
Back plug mod
(aka the ghetto c4 mod)
Again you will want to drill, dremal, or mill/lath the stock back plug to look more like the c4 back plug. Increase the area around the plug and create 4 "air channels"
Disclaimer: I take no responsibility for any damage done to you, your bolt, or your gun by doing any of these modifications. This is a simple helpful guide for those who feel they are skilled enough to do these modifications on there own.
So after over a year I finaly got around to testing this kit out....
Shooting it with a dwell of 14 at 280fps using a 68/4500 tank I was getting 5 pods and a hopper off 2000psi. So the math would say you will get just over 1700 shoots off a 68/4500....but we all know math doesnt always work in paintball so I would say expect to get about 1600 shoots with a ghetto mod'd bolt kit like this one....Not to bad for $1 of rubber tubing and some mill work to the back plug and bolt stop.