Here's what I'm thinking for this year, so take it for what it's worth. My approach is sort of similar to yours.
Last year I shot an Elite Impulse and jumped on the Ranch Fairy train with a total arrow weight of about 590gr. I switched from mechanicals to fixed blade (Slick Trick ViperTricks). The first buck I shot ran almost 150yds with VERY little bloodtrail, despite a complete pass through. It took me 2 hours of trailing, on my knees, looking for specks of blood.
This year, I switched to a faster bow (Bowtech Solution) and my finished arrow weight is 481gr. According to OT2Go, I should be in the 290fps range with my setup and still have 18% FOC. I'm also pretty sure I'm going to switch back to mechanicals (Grim Reapers). A good portion of my bowhunting is in urban areas. As such, most of my shots are under 20 yards and I need a big hole to put the deer down fast.
One add, I'm also shooting a single pin sight. I prefer the increase in speed so that I can set my sight at one yardage and be good from 0-30 yards.