Thanks for the feedback. I've tried all but the 2 caulk gun methods. The Six10 sounds pretty clean if the nozzle is small enough for the smaller holes. I'll probably bore them to least a 1/4", anyway. Likely have to use several methods again. Lord I make a mess w/ epoxy.
Still drying out holes with alcohol and hair dryer. Got a feeling some may be too wet and to seal properly.