Re: bow help?
I would have to agree. I think its a good idea to get your hands on a good used bow for starters. I'm not familiar with that bow but in answer to your other question "let off" is the amount of draw weight reduced at full draw. If the draw weight is 50lbs and you have 65% let off you will be holding 17.5lbs at full draw. A lot of bows are 80% let off, it might not sound like a lot but waiting at full draw for that buck to take that last step can seem like an eternity. I hope this helps.
Steve.
It's better to pass on a shot that you wish later you took, then to take a shot and wish later you didn't.