Thanks guys,
Hoping they fly as well as the big one and see no reason they shouldn't.
About figured out how to add a slider to the big one and as soon as I get these things off the bench I'm going to work on it. Also need to add some fixed tip weight, was told at Brodaks it needed more. Have the tip weight box crammed full so thought I would just bury an ounce to an ounce and a half in the wing tip and adjust with the weight box as necessary.
The 15 size isn't going to have this problem, I made the tip weight boxes big enough to hold way more than it could possibly need.