Should I make the vacum line going to the boost controller from the pressure side of the turbo as short as possible? and the same for the one going to the wastegate? Reason I ask is because I heard you want to do this to get the most accurate control. The shorter the vac lines, the better control.

 

damnit, it didn't post my signature with my mods...I have a 88T2,with a s5 turbo

 

Yes, It will reduce boost spike the shorter it is.