Here's a question: how easy are backward three turns and brackets on each of the blades? Since they turn on the back of the blade...
Bill, do you do backwards turns on the back part of the blades? I ask because different coaches have given me different places to do back turns on - many do them near what I call the sweet spot (the cusp between the spin rocker and the main rocker, near the ball of the foot; not what many hockey players call the sweet spot, BTW, which is the flattest rocker region, close to the center of the blade).
So far, while I'm not advanced as you, I guess you had same problem I initially had with Ultima blades: that it takes substantially more strength to make subtle position changes on the main rocker than it does on the spin rocker, because the rocker curvature change is more pronounced, so very subtle pressure changes when passing that sweet spot make the contact point with the ice move too much, and it is easy to overshoot where you want to go on the blade when you pass it. I adapted very slowly and subconsciously, without clear knowledge of how I did it, but maybe someone here who is better than me can give you explicit advice on how to gain that degree of control.
I have never skated on the MK Pro blades. But I wonder to what extent it is a problem, on both the MK Pro and the Protoge blades, that they are perhaps best designed for intermediate freestyle moves like single and double jumps, with a few spins and 3-turns thrown in, which can all be performed near the ends of the blade, whereas I think the Coronation Ace is almost a compromise to also allow moves that are emphasized somewhat more in Dance, like hrackets, counters, and twizzles, which involve a bit more of the middle and sweet spot of the blade. (I'm basing that partly on the fact that when I started ice dance, I was told to switch to Coronation Aces.) Or do I have that completely wrong?
Or maybe you need more experience with the new blades to be certain? A few weeks, for an adult, is a very fast adaption time, and a few weeks, months, or even a year or two from now you might feel very differently about these blades.
I suppose that if you went "all the way" to advanced models with aggressive toe picks like Wilson Gold Seal, or Ultima Supreme (I never fully adapted to the latter, and shouldn't have tried), it would be even harder to adapt.
OTOH, the one "advanced blade" I loved, MK Dance, is super-easy to adapt to, because the toe picks are not very aggressive, the tails are short, and,.being ground thin at the bottom, they are very fast. Easy, that is, for everything but jumps and maybe spins.MK Dance might be an interesting blade, given infinite resources, if you want to try something a lot different from what you are trying now, and you are willing to switch blades for Freestyle practice.