Learning the HARD way...
Join Date: Jan 2007
Location: Boston / Ft Myers Area
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I have had good results potting holes with West's Six-10.
It is a little more expensive per volume unit, but more than makes up for that in terms of convenience, and because it is extremely viscous (it STAYS where you put it!).
If I were real anal about it, I would mix up some MAS Low Viscosity epoxy with MAS Fast catalyst. Using a syringe, I would inject the Low VIS/Fast epoxy into each hole, so as to wet out all the crevices. Then, again with the syringe, suck it out, and let it set. Then, I would follow up with Six-10.
In practice, however, I have simply used Six-10.