The HF chief did hit hard for its class in the TTC test, but the trigger control wasn't great. Kind of all or nothing. The IR the OP mentioned hit as hard as the chief but had better trigger control.
I have several of the HF chief air tools (which are identical to tools sold by other brands) and I like them but I think the TTC review had me leaning toward the IR on this one.
Right, I watched the video, that's why I mentioned TTC in the first place. lolol
The IR is also more money than the HF Chief. That's why I agreed with theoldwizard1 when he said "The HF Chief is pretty good".... Then I said "Agreed....
especially for the price"
Generally, the Chief stuff from HF are pretty decent tools. Like you said, "they are identical to tools sold by other brands".... and usually at a far cheaper price, too.
If I was using air tools every day, for a living.... I would absolutely buy the best that money can buy. If I'm busting frame rivets once a year, or doing the occasional wheel bearing, I can live with a hard hitting air hammer with a bit less control. I usually don't have a problem running an air hammer, but I 'm also 6'4, 330 pounds so I have a fairly good grip on the tool. lol.