Hi Buck,
Thanks for the words. I currently have a 44lber on the Kingcat right now, so thrust certainly isn't lacking haha. I originally flew the Kingcat with a PST1300R which was great except for a ridiculous idle thrust. The Booster on it now has a very low idle thrust and slows down great. The extra weight would help with the floatyness of the Kingcat probably though.
I thought the AT400 was smaller than the 450, guess not though? So you were running another fuel tank beyond the 3 tanks that come with the Kingcat?
Jeremy