Mike Fredricks is the guy who sells them. He runs Hat Trick RC. I forget the exact name and I don't have the website handy. You can find him on the RCCA forums or linked from the RCCA site at
www.rccombat.com though.
I assume you use 27' with the assumption that the streamer will streach the last 3'?
I live in a small townhouse that doesn't have anywhere that is a 30' straight line in the place. So I was wondering if you did anything that would help there. But I guess not.