I have heard alot of guys around my area worry about the "size" of the ST, but it is important to remember that hemorrhage kills, not wound size.
What I mean by that is the 4 blades on a trick are as sharp as anything on the market, probably the sharpest. This ensure every capillary is severed in its path and therefore blood can't travel from A to B (artery to vein).
While some holes look bigger, they can simply "push" flesh around and not necessarily sever as many capillaries.That is why I truly believe these sharp "smaller" heads are causing animals to die so fast, versus, 'I cant believe he ran that far."
So many other factors play into it, but I have seen deer run 20 yards and just tip over with these tricks, not to mention a bullet hole type of wound, that is very difficult to close vs a 3 or 2 blade. Good heads.