OK-My son who is 3 has started riding one of our minis-obviously leadline-I want to purchase him a saddle but am confused on the size. I know western runs diferent than english, and I am buying a western but only have experience in buying English. Would an 8" be too small? The majority I see are 10 inch-but I do see some 8 inch too. I am SO confused!! I cant find anywhere locally that sells them that I could try them out so I am left buying one via the internet...