Looking at horses and I found a potential that really checks all the boxes, and is a complete babysitter type. Just a really nice solid horse. He is 10 years old, and used for open shows and ranch pattern classes. He has a stifle issue. The owner says its a sticky stifle, or weak stifle. When he is not in full time work it is worse, but he warms up out of it. Picks up both leads just fine at the canter. Its the "stepping in a hole" type feeling while riding occasionally according to the owner. The owner has had it evaluated by a vet. She said she never had any issues at a show or any judges saying anything to her, but she decided to have it looked into after the show season. She told me he was insured so she was ready for surgical intervention or injections if needed. The vet told her the horse really was not a surgical candidate, and to keep him in work and it would get better. The horse has never had any other type of maintenance. She just did a lot of winning with this horse even up through Oct. 2018, and the horse is really fun to ride. I just don't want to walk into something that is a very large risk. My goals are some open shows, clinics, and maybe trail riding. I will of course be doing a PPE as well. I just have never dealt with this type of issue. Just looking for opinions before i shell out the big PPE bucks! I know there is not much here to go on, but i figured i would see if I could get any input.Thanks!