Gary Letsinger gave me one of these "Babe-Bot" glue bottles at the NW Skyraiders meeting last night. He uses it with Titebond III, which is very strong and waterproof.  I asked about sanding, but didn't get a reply. I think it will be at least ok, tho.

The glue bottle comes with 6 each of two kinds of tips for $4.00. It looks like a very clever and well thought out design to me...I guess I'll have to breakdown and build something. Maybe that NoblARF/piped PA.40UL for next year's All American ARF-Off?  Steve
http://www.fastcap.com/