Buy the best you can afford ,ask lots ????? and practice. Use a wrist strap release from the start ,i started with a hand held release then realized you have to keep track of where it is in which poket,ect. which means when its crunch time and you have to fummble around you lose vaulable time on the shot.Also smaller isnt allways better axle length and brace height effect the forgiveness of minor form errors. Good luck Rob