Keith: As far as adding more glue, I would say there is no need to unless there is a weak joint you'd just be adding more weight. As far as the trailing edge sheeting, is there a trailing edge cap? if not make sure you taper the sheeting where they meet unless there's stationary flaps. Tight bond, sigment,sig bond, ambroid or even medium CA will do. I use Sigbond just my choice. Good Luck