XRAY - Model racing cars

Hi guys,
just a few questions about set ups and what they do if anyone knows

1. what happens when you put a 1mm spacer to the top of the rear shock
2. changing to +.75 and -.75 from 0.00 on the suspension arm
3. what affect does moving the diffs/spools into the up or down position do

Thank for anyone whom is able to help

Can someone how knows this please answer the questions, i wonder the same thing.

hi guys,

1.i don't think that it change many on the car, normally you get a little bit less grip on that part of the car where you add the shim, but on the track i don't think you feel a difference.
2. roll center -0,75 more grip on that part of the car, 0 best starting point & most used. +0,75 less grip on that part, when you use it in front, car feels more direct.
3. on technical tracks move theme up, on long and fast tracks i often run the diff/spool on down position. when you run rear/down and front/up you get less steering on corner exit, which is often used in modified to go earlier on power. when you run front/down and rear/up you get more turn-in on corner entry

hope i coud help you
joe