Thanks for that.. I am using a ST .51 in mine so I'm hoping the extra weight will balance out ok..

I am going to cut and install the wing joiners tonight (didnt come with the 90% complete arf i bought) should these be 50mmx500mm? like.. does the joiner go right to the end of the tube in the wing?

I am going to drill a bunch of holes in the joiner piece after i glue the two halves together to try and cut down on the weight

Anything else I can do before glueing the wings together that you can think of would be appreciated =]