I usually only do one round of fillets with Q and T. I was using epoxy and was tired of mixing and pouring it. Glue was the best choice here, especially the way I wanted the fins a little off the body tube. Normally one round at all once and they are finished in 2 mins with TB Q&T.I'm leaning toward using epoxy for LPR fins just to avoid the multi-step fillet problem that comes with water-based glues. I can choose my filler depending on the strength & weight required for a given build.