I just finished my 40 ultra stick. I put an irvine 53 on it. I put aluminum tubing over the dowel rods and swaped out the metal mount for a dave brown. I didn't add any tail weight. It balanced 3.5" back. I was a little surprised at how heavy the thing felt though. I haven't weighed it but I'm tempted to ask a grocer or postal worker to weigh it. I have a 1400ma rx battery in it which adds a little extra weight I'm sure. I'm a little dissapointed with the verticle performance on it. I'm coming off an avistar that had an os46 with a tower muffler that had better verticle than my stick - seriously. I'm going to put the tower muffler on the stick and see what happens.

Edited: No tail servos either or tail mounted battery. Half the battery is under the servo tray.