I skated on these blades this morning.
First, I want to preface my remarks by saying that you like what you are used to. I've been on British blades since early this century (sounds old, doesn't it!). That's what I am used to.
Now for my experience with these blades. To sum it up, they are coming off my boots right away. The feel is considerably different than the Wilson or MK blades that I've been on recently.
Stroking: While both stanchions are higher than either the Aces or Professionals, the rear stanchion in particular is proportionally higher. I felt this difference even walking with guards to get to the ice. It felt like I had weight on my heel. Stroking on them also felt like I was over on my heel - at first. I did get used to that by the end of the session. Skating backwards felt mostly the same, but for some reason, I ended up scratching the toe picks frequently. Toward the end of today's session, it was better but still not great.
I felt the overall higher stanchion height at first, and it tended to torque the boot into pronation when pressing hard. By the end, I either tweaked my technique, or just became accustomed to it. I didn't feel it after a while.
For me, stroking was the easiest aspect of all these new blades to get used to.
Three turns: This was the best part of the experience with these blades. I stayed in the "sweet spot" longer when doing three turns, and in particular, when doing traveling threes. I did get onto picks if I wasn't careful.
Glide: These rocker of these blades is a bit flatter than either the new Aces or the new MK Pro blades that I had on previously. The factory ROH is likely larger than my usual 3/8" ROH. The blades are also slightly thinner material. Because of this combination, I noticed a small increase in glide when I was on the center of the blade. It's not profoundly different by any means, but it was there.
Spins: Here's where my long term experience with other, non-Jackson blades hurt me. It felt VERY alien at first, but when I did manage to get over the blade to spin, I traveled and scratched heavily with the picks. I didn't adapt well to these in the 1-1/2 hours I was at the rink. I'm sure that it could be learned over time, but the MK Professional blades suited my spinning the best.
I just wish that the MK Pros had the flatter 8" (nominal) rocker. These Protege blades better suited my three turns with their flatter main rocker.
I was going to try the Ultima Synchro blades next, but because they have measured similarities with the Ultima Protege, I won't bother. By now, I can estimate how a blade feels by the graphs and tracings.
Looks like I like the "British house curve" the best. No wonder though, I've been on them for nearly 20 years.