I frag a lot, it's one of my favorite parts of the hobby- just something satisfying about seeing something grow, and then being able to propogate it, suppose some of the Oklahoma roots on my moms side are showing :tongue:
I dose the main three (alk/calc/mag) and count on semi-frequent water changes to take care of the rest. Depending on the coral, I usually have the wound healed over within a week, with complete heal-over and new outgrowth starting after 1-3 weeks. Oddly the larger cuts tend to start growing new polyps the fastest, but take much longer to then proceed growing out.
But yea, patience is really the #1 thing to cause coral growth, beyond ensuring good conditions for the frag (no algae on frag plug/near cuts, healthy amounts of light and flow, etc)