Simon, thanks for the info. on the Manito. I’ve been tinkering around with the OS 10 and have improved it’s performance quite a bit. Went to an APC 6.5 x 2.9 prop, and bladder pressure with 35% nitro and it hauls the 400″ Maverick pretty good. Next I’m going to remove the venturi and see what additional performance I can get. I am on the same page with you on a 350″ plane for the TD 09 or the OS 10, I’m looking at a Geo. Galaxy in that range. Will be next winters project!