Post-curing compensation

We need to print parts with as high precision as possible. We use the grey V4 resin and post-cure it. However we noticed that parts are often smaller than designed. I read that post-curing parts will shrink them, but that Preform automatically compensates for that. However the V4 resin does not require post-curing. So does Preform compensate for post-curing of V4 resin? If not then would we get better precision by not curing it (closer to intended dimensions)? Is there an option somewhere in Preform to turn on/off post-curing compensation?