A pony with expensive tastes...

Echo is doing really well at Tammy's - I have been having a crazy few weeks of work recently so haven't been able to get up to see her very much, but Tammy gives me regular updates on her progress. Apart from a few days where her work was cut short due to snow drifts (who'd have thought it's almost April?!) she has been building the work steadily.
She's now doing a 45 mins walk and trot hack every day, with a few times a week doing five mins in the school too. She does in hand poles in a fan, ridden poles in a straight line, a set of stretches every day and has an equilibrium machine on every other day- alternated with a tens machine. She has become really rather attached to the equilibrium. Ella, her physio, sees her once a fortnight too.
She is doing really well but still gets sore behind the saddle- although Ella thinks this is getting a bit better and she loosens off pretty quickly. I'm not going to worry too much for now. It's amazing the difference an equilibrium machine makes though.
Yesterday, when I arrived, she had been ridden in the morning but Tammy had left the pad and stretches for me to do. The pad works for half an hour, pulsating and vibrating the back muscles. When I arrived her back felt pretty solid- I couldn't get her to do any of the 'butt-tuck' exercises as she wouldn't open up through it at all. But after half an hour her back muscles were soft and pliable and she happily stretched through them when I did her exercises.
Since it looks like she may always have a tendency towards a sore back, it is looking like it might be sensible for me to buy one of these pads for when she's back at home and in full work. Blooming' expensive taste that pony has! But seems like it would really help.
I'm trying a different saddler too- one that Tammy uses and knows well. I lost a little bit of faith in my saddler over the last couple of months and with Echo's back she really needs the saddle to be spot on.
I'm away for a few days now, but have two weeks of holiday after that, where I hope to ride Echo myself as much as possible. Which will be quite novel!