Hey Rob! Sure, it's the right forum - no problem at all for me anyway. I've been in your boat several times in the past few years - looking for fabrics that'll work. Just doesn't seem to matter one way or another, I always default to koverall eventually. Last couple times I got any, I got 2 of the 5-yd packs. One of them's still unopened, a year later.
Know the Joanne dress liner fairly well - tried it on my latest C/L Skylark ... it wrinkled with the nitrate dope as it dried. Sheesh! Ended up using my old tried & true silkspan, which is what most of my C/L planes are covered with. Silkspan works super well for C/L but I'd never use it on RC.