Just called my friendly hobby shop today to get some Sig light weight fiberglass cloth. I'm running a little short for my Ziroli B-25. Owner says that they can't get any from Sig and are having major troubles (many products on backorder) getting other products from Sig as well, and are having to go to other suppliers. David Redden, can you shed some light on this? Meantime, it looks like Balsa USA has taken over Lone Star Balsa products, so I'll probably go to BUSA for the fiberglass. Just one more problem that the kit builders are facing. Lee