I agree that as much exposure to as much as possible when they are at home is a really good way to go but also when introducing them to the roads taking them for walks in hand is a good way to go too.
Distance from home and facilities (including grazing etc) other than that I don't care I'm down late most nights and I keep myself to myself mostly... As long as my horse is happy then so am I!
I think the term 'you ride at your own risk' has never been more appropriate... The parents were more than aware of the dangers and therefore shouldn't have allowed her to take part if they thought the course to dangerous and the horse unfit.
And suing the trainer too, how bloody ridiculous...
My mare used to trot quite heavily down a concrete lane to be turned out each day and subsequently developed a small splint (although not as small as the one you describe)...
Fortunately she didn't ever go lame with it and when a vet looked at it she said that there wasn't really anything that...
I think I've read about something like this before and as he was born like this he won't know any different and it shouldn't have any bearing on what you will be able to do with him.
If you are still in doubt you could always speak to a vet though...
I only have proper use of one of my eyes...
Anyone used Deosect for treatment of lice (in my case it's a preventative measure). Also I have been told it's a very effective fly spray... Good and bad experiences welcome.
Mines £16.50 for a trim and he's very good.
Before him though I had never had a farrier charge me more than £15 which I always thought was pretty reasonable.
Aww bless him, he's only a youngester and most people looking at that age range won't be expecting a well schooled perfect pony they'll be looking for something they can bring on, it sounds as though he's got everything going for him.
I'd advertise him privately if I were you, local tack...
Persistance is the key I'm working on similar issues with my mare (although her problem is more one sidedness), lots of circles, serpentines, spiralling in and out on a circle as well as shoulder in are all exercises to help.
Leg yielding should help with getting him to move away from your leg...
Just a thought, she's not coming into season is she... or it could be the spring grass.
Failing that the usual teeth, back and tack checks might be in order if it's uncharacteristic!?