Quick spins are a POS. Great for target bows, but suck for hunting. Unless you hunt a loud, short distance. I found quick spins, loud, slow, and not very durable. I tested them all summer, and just dont like them. Major drops past 20 yards, cronie showed them as to be rather slow, and did I mention they are loud and not very durable.
For the money, Id go with blazers or simple 4 inch helical.