The reason I included that comment about the "truly crazy among us" is that I've just recently picked up the supplies (at great cost and hassle) to give silk and dope a try. I used tissue and dope as a kid but haven't tried it on an RC model. But really from my tests so far, I just can't see anything being much better than Natural color solartex. It's lighter than the colored solartexes and the weave looks perfect for our scale models. I prefer the look of it to the look of Koverall. PLUS its just as simple to apply as any material possibly could be.

One downside with solartex is that, when applied over balsa sheeted areas, it can have a tendency to "lift" or "bubble" if left out in the sun on hot days. But then we all know not to do that will our models, right! Koverall doesn't have this problem because it is doped directly through the fabric onto the balsa.

For the sorts of models I build (mostly open structure) solartex is just about the perfect covering material. But I just want to try the silk and dope just to get it out of my system. [:@] Here's a thread I started on the subject not long ago:

http://www.rcuniverse.com/forum/m_9007372/tm.htm