I hate frag plugs and refuse to have them in my tank. I know a lot of people with beautiful tanks have them in there, but I just prefer to attach my SPS directly to my rocks. I use a knife to pop the SPS off the plug if it is not totally encrusted. If it is I will usually go to work on the plug with a small pair of wire clippers. In the worst case scenario I will just take the clippers to the base of the coral, cross my fingers, and snip.
To attach the coral to my rocks I use Lock-tite superglue gel and JB Waterweld epoxy. I make a small ball of epoxy, dab the base of the coral dry, liberally apply superglue gel to the coral base, put a ball of epoxy (size determined by size of frag and surface it is going on...deep hole more, flat surface less) on the glue/base of coral, then add super glue to the bottom of the epoxy and stick it. I will hold it there for about 15 seconds, then it is good to go. At first the epoxy is a little white and will stand out a bit, but then it darkens a little, and eventually the coral will encrust over it.
Wow, sorry for the long post.
I'm with you Barry, I never realized how OCD I was about this...lol