Larry,

I felt that the mods were adding too much weight too, but the mods are very minor as weight goes. I think we are talking about 0.25 oz's on mods! That's nothing. Yea, that heavy battery is probably part of the problem, but I make these comments because anyone buying the Hellraiser from Hobby Lobby is probably buying that battery for it, because it is recommended there.

I want to know how you get all the way down to 10.5 oz AUW though [sm=thumbup.gif]. My son's bare-unmodified plane with a TP760 weighs in at about 12.8 oz, and 14.0 oz with the TP1320. There is a huge differnece here. It flies like a bat-out-of-hellraiser on the 1320, and a noticably better on the 760 with half the fly-time. There is a disconnect here somewhere. Let's fuigure this weight thing out... did you do anything to lighten the structure?