I am getting ready to cover my sailaire. I am using micafilm so far I have had no problems covering the stab and rudder. My question is with the wings. The wings are d tube. With the micafilm is it necessary or even desirable to coat the sheeting with balsarite? Or is it better to just paint the perimeter of the sheeting? I intend to use the balsarite on the rib caps. Just want to know which way will reduce bunching of the covering.