Now, I'll answer the question based on what I've used[8D]

Rocket Miniblaster 75 gr. 1 3/4''[/b]- 5 deer, all pass thru shots. Recovery distances of 12, 25, 40, 45, and 60 yards.
Rocket Sidewinder 100 gr. 1 1/2''[/b] - 2 deer, both pass thru shots. Recoveries of 40 and less than 50 yards.

I had 60# of KE and those heads fly like field points, and leave lots of blood, but the entry holes did not impress me.

I'm going to try the Spitfire this fall.