When I got Cossack I had just started riding again after a break of about 10 years. I got him much quicker than I had anticipated getting a horse as my riding instructor knew his owner. I am absolutely fine walking and trotting him, but haven't really cantered for ages. We have an outdoor school at the livery yard where I am and we have an instructor who comes and gives lessons. But the problem is that the surface is quite deep and the vet has said it isn't good for his arthritic leg. He is fine on grass and is okay to hack out, but schooling puts a bit of strain on it. I feel quite rusty anyway as my riding has been a bit on and off since I've had him and my confidence isn't that good. So I was thinking of perhaps having some lessons at our local riding school on one of their horses just to brush up on my position and get used to trotting and cantering again. I am hoping this also may help with my confidence and help me deal better with his behaviour if he is naughty and nappy. Does anyone else with their own horse have lessons on a different horse?