Hi.
I decided to buy the kit of the 4Star (40) and do what you all said, I'll modify the control surfaces (elevator and rudder) and will do couter balances. But still I have a question, how should I do it? The kit contains the exact length of the beams to build the control surfaces. So what should I do? Should I buy a longer balsa beams and then make a bigger control surface? And how should I make the counter balance? Should I need to take part of the stabilizer and stick it to the control surface?

Thanks, Elad.