If I were you,leave your hunting bow a hunting bow and shoot it in the hunter class.Then set up a 3-d/indoor bow.You can shoot fat,light carbons with glue in points and short 2"-3" vanes.Get a bow like a 38 pro from Hoyt or the 7-37.Both these bows would serve you well in both arenas.Personally,I would think sticking with pins at first and staying away from the open class and learning to judge yardage would be advisable.This would put you in the MBR class which is usually the next to farthest stake.I would also suggest staying conservative on draw weight,especially with it being a spot bow as well.You should be able to shoot a 63-65# bow and get 280 fps+ and still be able to bust some spots with it.