I've been using the Devcon2 30 minute epoxy. It goes on easy and I haven't had to use a spinner to get a smooth finish. I also have never had the problem of it not setting up fully like some of the E-Tex guys have mentioned.
The big drawback is that since its a 30 minute epoxy you can only do 1-2 plugs at a time......which is going to be a pain-in-the-A$$ for the Super Swap

. This usually isn't a big deal since I only do a few plugs at a time normally.