I used racks that fit exactly in the picked foam dimensions. Do you plan to also plasti-dip?
I think I'd rather have them tight vs loose -- the chip weight will cause the racks to compress the foam a bit and loosen things up more.... another reason to plasti-dip, to help lock the dimensions in place.
I think I'd rather have them tight vs loose -- the chip weight will cause the racks to compress the foam a bit and loosen things up more.... another reason to plasti-dip, to help lock the dimensions in place.