I've owned a few, one of which recently went to MaMaLulu and I can agree to this.
We hit Gray Dots once a week in a beer league, and 52/300 the rest of the time in games.
The bats have all lasted and well. We just kept swinging from April to November with them. No worries, no cracks, no fails. Just ugly with all the rashing that's it.
The one I sold recently to MaMa had much lesser hits being a backup and was game hit with only 52cor balls; but my others that were well hit with a mix of balls now owned by teammates were 1500+ and going. Nothing but rash to show for it, and still passed compression. Those teammates continue to swing away with no issues.
Failed compression is usually a problem for those who BP with 40/44/47/50 cor balls or rocks too much, and more common with bats which start right at the pass/fail line like Miken/Worth.
I will be honest, I do hit 40/375 balls a lot for BP with my group. We got a deal on 3 dozen because a league switched to the 52/275 version instead and sold me 3 dozens new of the old balls this year at a great price. The 28oz that a lady player bought off me took a tonne of work from those balls from various people in all temps and conditions from April to Sept. The bat passed for her just fine come Sept/Oct events. The gamer 27 had as much work and now belongs to a teammate who continues to swing it and game it.
I had the same experience as Chudder, mine started at 260-265 in wrap, got them down quick after the initial 100 hits and caught fire, and they've passed since and have never felt like they were getting softer and softer like a Miken/Worth bat does. And 2 of them had 1500+ with the 52 cor and the 40/375 batch hit into them often. Maybe the fact that the 40/375 are Trump with softer covers and feel makes a difference, who knows. But overall, we had much more luck with Nighthawk being reliable than we've had with DC41 and Legits. This was a little more like the reliability of Easton and LS we've seen.
Big fan of the product Mizuno puts out with these, and CANNOT WAIT to try the new Hawk with thinner handle and more EL. A Hawk more like an Easton EL bat? Sign me up!
FWIW Bat of the year awards for 2016 go to Nighthawk and Flex imo.
I think it all depends on the ball you're using tbh... my NH has easily over 3,000 on it. It got down to 230 after 100 or so swings and has been sitting there ever since.
However, 90% of my swings on it are with 52 300's