Your build is looking really good. I also have a showtime with a YS110 -- it has really good power-- I'm sure you will like it. Have you considered moving your tank back up against the wing tube? I put mine there and most of the guys with a YS in the showtime also put the tank there -- it makes the CG shift less as the fuel goes down. I'm sure, though that if you don't the Showtime will still fly well.