You auw (266 grams) is a little on the high side, but should be fine. So far all of the prototypes, alpha and production builds have been just a hair under 250 grams. Do you have the CG on the front or rear of the spar? If on the front, that will be slightly nose heavy, but probably a spot many people would enjoy. As you move it back you can reduce the elevator throw to keep the sensitivity to a sane level. As you move the CG back, the wing will work better, but if you go too far she will require more workload to fly. Find the happy spot you like and fly the heck out of her!
I have to ask, is that an XT60 on the speed control? LOL Looks so huge.
Aileron wing - Yeah, we will probably do this. See how it does in testing.
2 meter - Maybe. I have for sure considered it. The wing structure would be very different for that span. Question is do we keep it on the higher end of performance, or more towards the trainer mode of the original? The little GL Evo is targeting a higher level of performance and handling than the original.