Eben,
I hope you're wearing a respirator when you use that stuff, it has some nasty stuff in it

. It made me pretty dizzy when I used it... Right Bob?

. I believe It has MEK in it as well... which can be easily absorbed through the skin and has ill effects on your liver etc. So be careful

.
I have been turned on to a new idea... by someone on "That other site"

. I put my plugs in the oven at 220 for 10 to 15 min. And then brush a thin coat odf epoxy on. The heat makes the epoxy flow well and it soaks right into the wood, leaving a hard, waterproof surface. It even flows through the wire hole with a little coaxing.
-DAve