Started out with Zwickey eskimo 2 blade 28 years ago when I went back to traditional bows. Then went to Zwickey Delta 2 blade , then onto 160 Snuffers, 125 160 200gr Grizzlys, then 4 blade Deltas and finally shot a deer with a Simmons Treeshark. I always bounced back to Delta 2 and 4 blade as my favorite. Fun to try different well made heads, which they all are. Deltas sharpen easy, have a great ferrell to spin perfect on wood or metal adapters. Now I usually fill my quiver with 2 blade Deltas and put two 4 blade Deltas as bookends. I always put a tanto tip on them. Never had one fail.