This may not be strictly kosher but I have gotten good results. I lay down a little spray on adhesive where the glass is going. Then pull the glass down tight. Then apply thin CA to soak the glass and spread with a plastic bag over my finger. When done quickly and with a fan blowing over the area. This is quick and easy. The monocote wont stick to the CA worth a darn. However the planes I have done this on had a balsa fairing built over the joint anyway.

David