APHA trainer situation advice
I have years of horse experiance, from riding to showing but I have never shown APHA. I have recently purchased my first APHA horse, a 9 month old colt (technically a yearling now) from a succesfull paint trainer and breeder who I named A Real Casanova. He is bred very well and ready to be shown in yearling lungeline classes and showmanship in the Iowa Paint Horse Futurities this year. I had him as a training horse at the school I am attending but I fell in love with him and just had to buy him. I was in need of a horse that would be able to get me to where I want to go and he just seemed like he would be that horse. In the time that I have been working with him (I started exactly one day after he was weaned), I have taught him to lunge quietly, he knows the verbal ques he is going to need to know to get through his life, and he can do a mean showmanship pattern. Here is where I need some advice. I am keeping him at my teachers house because there is not many acceptable boarding barns in the area and my teacher (who has been training pleasure horses at the highest level for the past 40+ years, but is now retired) has advised me that I need to get a big time trainer to train him for a few months and to show him in the open classes so that he would be more succesfull. I really had my heart set on showing him amateur and was told that I can't show him in amateur if he is in open classes. That's what I was told but I think that person was wrong. Another trainer who I was taking lessons from for a few years told me that I should just work with a trainer and show him in amateur. My goal is to have him be as succesful as possible, but the reason I wanted to show him so badly was because I wanted to get my name out there and get more experiance. I know the cost of all of this and do not need to be lectured on how pricy these shows and training cost, and to be honest it isn't going to be able to keep us from having succes.
My question is, should I get a trainer to show my colt in the futurities in open classes or should I show him myself (while working with a trainer) in amateur classes? Also, can a horse be shown in open and still be eligible to show in amateur? Thanks!