I use the same broadheads that I use for dear for turkey. I use Grim Reaper Razortips. About the only time I archery hunt for Turkey's is in the fall. Missouri's archery tags includes 2 Deer and 2 Turkey tags, so I just take a shot at whatever is coming by.
If you are just going to be hunting small game and turkey's with your bow, I might consider lowering the draw weight. You don't need 70lbs for a squirrels and turkeys, and often for turkey's you have to hold your draw longer. I don't think 70lbs will hurt anything, but it makes it more difficult to hold your draw waiting for a shot.
It's a fact that 70 percent of the people who purchase heavier tackle do so with the categorical I just lost a huge snook! Einstein Hairdo.The other 30 percent have either Tarpon Fever or are sporting a hand cramped into a claw from a deepwater grouper.