Humphrey was castrated and also had the undescended testicle, which was situated in the groin, removed at the same time using key hole surgery. I realize its not quite the same as spaying but as a general rule, key hole is far less invasive. We collected Humph immediately after surgery and he walked towards us, albeit a bit wobbly, but recovery was very fast. Have also had a hernia repaired myself using this method - If there‘s a choice, I‘d go for it every time...