fillae

There is a big difference between 50 and 65 lbs and what type of arrow you need. If you only want to buy one arrow, I would set it up as if you are shooting 65 lbs. You will be over-spined shooting at 50 lbs, but that would be better than being under-spined at 65 lbs. At your draw I would think you will be in the 400 spine area. Once you pick the right spine and the right arrow length, any broadhead should work. Just remember if you tune your bow at 50 lbs with those arrows, you will need to re-tune at 65 lbs.