It seems like one difference is that the flare doesn't have width options. As you point out, they get to their effect differentlly. I like the XCblade approach, because it's been well proven in downhill and XC skiing for over a decade, if not longer. The principle is valid.
Haha.... my son's a hockey player.... cost really doesn't factor. You choose which kid's education will get sacrificed down the road 😉 That being said, it appears as though the XCblades are cheaper than the Flares. So, another advantage.
We talked about it and he has an old pair of Trues that are the same size that we will likely throw some TUUK holders on for testing purposes. If testing goes well, then we'll switch his main skates over. The cost isn't the issue, it's the fact that the rivets start failing much sooner when you switch holders and it becomes a pain more than anything else.
Thanks for the responses.
Steve