Anyone tried one? I'll start off by saying I'm not looking for a training aid, a quick fix or a short cut with over 30 years riding experience that's not how I operate. I do however have a horse that's been largely off work since November 2018 due to my 2 pregnancies in quick succession and having done a bit of reading I was wondering if these would benefit him as part of our routine to get back to fitness (in addition to long lining, pole work and his straightness training lessons). There seem to be a few suppliers, anyone any experience of them?