Well to put it nicely, the fairings suck
I cut mine out the best I could, put some RC56 canopy glue on the wing saddle only and bolted the wing on with the fairings in place. This way I could put pressure on them with the wing and get them in the right place, then I let it set up over night. The next day I used the thin CA and worked on it inch by inch glueing the top in place. I had to make a little pusher block to hold the fairing in place while I wicked the thin CA in. Seemed to work ok, but I wish they fit better. Mine turned out pretty good but it took quite a bit of time to get them right.