Got my UCD today. Due to all the YS .91's being on back order according to my LHS, I opted for the Saito 100. I am a big fan of Saito anyway so this seemed like a good chance to try this new little marvel of theirs. Discussed the Cline regulator with the "experts" at the LHS and they are of the opinion that the regulator is unnecessary provided one clamps off the fuel inlet line while fueling the airplane. Time will tell. Thanks for all the tips. I will incorporate them as I build. Really looking forward to this project. I hope to be flying it by the Azalea Festival Fly In in Muskogee, OK a week from Saturday. No time to chat, gotta build.