That sounds like a positive improvement. However, he could still suffer from bouts of the laminitis from time to time. Just depends on whether or not he can support his weight on all fours. If he favors the bad leg, he will continue to have problems in the others. He'll do well for awhile and then have problems again. They will have to work him through it and then he will be fine again for quite awhile. Its a constant, never-ending cycle. Been there, done that.