I'm also pulling 50-52 lbs at my draw and I'm front loaded with a 300 grain broadhead and a 100 grain brass insert. Sort of depends on what you're hunting and how much FOC and momentum you think you're gonna need. For most guys EFOC and UEFOC set ups with heavy arrows are considered a bit much (and that might be true) for bigger brawnier critters, like moose, mt. goat, Brown bear and African stuff, I like heavy arrows 650+ grains and as much FOC as the set up will stomach 30% if I can get it. Stu's calculator has been a valuable tool in getting close with my setups and has probably saved me a bit of cash in experimenting with different set ups. Google Stu Millers calculator and you'll find the download link.