My new horse Vinnie actually grass foundered three years ago, and he hasn't been ridden since (we just found this out, ugh). So now I have a really big fear that once I start really working him he'll break down and become lame.
Is it likely that he will? Like I said it's been three years. He's perfectly sound now, but he hasn't been REALLY worked since he foundered. I'm planning on taking it slow anyway (he's much too fat, especially now that I know he has foundered before..) and just lunging him and building muscle and losing fat.
So, what are your thoughts?