Just finished switching my microsizer to my zip, and man what a diffrence! Spinning tires, donuts and just balls to the wall fast.
Major benefit is better handling with the zip chassis.
Read about this in an earlier post and had reservations because I liked my micro too (just liked the zip better) but spent ton of time on the zz pcb looking for the magic mod.
Well worth the expence of a micro just for he pcb.
Requires alot of patiance and good soldering skills but I am really impressed with the outcome.
Plan to but another micro just because I have a few bodies and parts that will go to waste.
For those of you who can do this mod should do!!
I know some of my friends will be mighty dissapointed this weekend

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I'll post some pics later today.
Right now gonna go smoke some tires