Ceegee, i love my 46 AX, and it did a fairley decent job of hauling the UCD, it will be great in that katana profile if you get it running well. It is now in my Avistar and that thing screams. I get a little worried from time to time because its going so fast. I cant figure out if its one of my wheels or the the rubber bands but every now and then when i hit terminal velocity in the Avi i get this odd noise. The guys at the field say it sounds like a big tucks jake brake.

A while back i had bubbling problems in a tank and i added foam and a different type of clunk. It looked kind of like a stone, almost like an airstone for a fish tank if you know what that looks like. That really seemed to help at the time.