On a weekend when there are a lot of tourists about I feel like the Queen waving at everybody as they pass :D How heavy does the traffic have to be before you can stop waving at everybody that doesn't pass you at 60mph.
What is the farrier taking off the feet? I must admit that after my farrier left my pony sore after a trim several years ago I never let him do them again and have done my own since, without any problems.
I would treat her as low level laminitis though especially with the flat soles.
Now that the stallion has got a sniff of the mare lon your property when you hopefully move her away it will probably take a little while, maybe until winter, before he goes completely back to his old self.
It's the hollowing as he tries to pace that causes mine to do that. To do it he needs to change the tension in his back muscles so maybe that may be somewhere to look for a problem if he's just started doing it.
That's an interesting article. My pony does this but it doesn't worry me because he is gaited and it is just one of the many varieties of things he throws at me. To get him out of it I concentrate on him working down onto the bit and lifting his back, which helps keeping his trot clean...
If I can't find or afford what I want as an adult horse, I get what I want by buying a youngster that will become what I want in time. Fortunately I have always had the opposite experience to what Lex2009 just posted.
It is more likely that you just don't know the right people yet. Have patience, get involved with pony club, something will turn up especially later in the year. And as people have said you are in no position to buy one unseen or without someone with you.
Until the last couple of years I have always kept my ponies out all winter at a friends place. I was lucky that were they were had once been a poultry farm and there was a lot of grassed over concrete and areas of hard standing in the field where buildings had been. We are in a heavy clay area...