My home has plaster walls. Plaster walls have a thickness of around 7/8". What would be the solution to install Enduraflood panels? 1/4" Shims are an option for the ENDU-BOARD (to connect to 5/8" drywall) but maybe people have other ideas. I'd also love to use ENDU-KOARD in at least one room (which seems to be meant for 1/2 drywall). Any good idea for using those with plaster walls?