We all have our preferences. I tried rollers and brushes. Too messy, wasteful and inconsistant for me. I apply the glue with a fiberglass lam cutoff about 6" long... same one I've used for many years on many bows... bbo's, trilams, glass bows, etc. Easy to gauge the amount of glue being layed down, very little waste or mess... could almost do it by feel alone. Just wipe it off with a little acetone or alcohol when done and it's ready to use again.