So, Geoff has learned a lot since I got him - we have a mostly soft mouth, we move off the leg, we've got the start of laterals, we have a balanced walk, trot and canter and we are acing our walk/trot and walk/halt transitions. However, Geoff is still very on the forehand, and whilst we've been doing lots of work on engaging his hindquarters, typical OTTB has very little back muscle and finds it hard. We have been working on it, and he can engage for short periods, but does find it hard.
However, I have found that whenever I let him trot out (he's 17hh and all legs, so has a HUGE trot when he trots out) he forges. My instructor says that because he has a relatively short back and very long legs, when he gets on the forehand he forges. However I did an internet search (deadly things) and it told me all sorts of things about forging being due to stifle problems/bad riding? He only forges in the trot, and only when I'm riding him.
My questions are: is it just because of his short back and being on the forehand or am I doing something wrong? Is it something a horse grows out of once as their training improves?
I do want to event Geoff, and whilst he'll never have to reach a high level of dressage I am one of those eventers who is uber picky about their dressage... so how far is something like forging going to affect that?