With lower draw weightrs (or any in my opinion) used a fixed blade head Personally I use ABOWYER heads (the Brown Bear) want to read why go to : tradgang.com/ashby
Its a lot of VERY interesting articles about WHY broadheads penetrate, and why the do not... its based on the laws of physics and not 'marketing words' and is definitely differant than the 'mainstream' thinking... even I was a lil sceptical at first... now Im a firm believer....
It's a GREAT bunch of reading.... read it, you will not regret it...and just may learn a thing or two (I promise that you will)
Tom