I had already trimmed off the back of the pick, which worked well.
Adjusting any other tooth wouldn't affect me, except in weight - I'm not advanced enough to use the rest of the toe picik.
I tried the blades again yesterday. I didn't fall over again, and the three turns came back. But I don't spin well. As soon as I got dizzy, I would lose control without the drag pick. It is possible a skater who spins better wouldn't have this problem. I need to tap against the the drag pick to stabilize my spins.
I guess blade shape changes should be made a small fraction of a mm at a time, with several days worth of skating between. A long drawn out process.
OK Agnes. You complained when I started a thread on not filling boots with silicone to create a snugger fit, that I hadn't done damage to my boots, only to my home-made duct tape ones. Well, I probably have made this pair of blade runners unusable. The runners cost me $110/pair, and are no longer replaceable, so that counts as a substantial error.
For the present, I remounted my old MK Dance blades. I had worn them out enough that the toe pick interfered with some things, and had destroyed the sweet spot. I didn't know enough at the time to adjust those things. Maybe I will later. For now, I will spend a month or two getting used to them again. Perhaps my time is better spent improving skating skills than playing with blade shapes.
The MK Dance blades feel a lot different than the Ultima Dance, before or after my changes. In particular, the somewhat smaller rocker radius means it is much easier to rock through the blade, and there is a lot more room to roll between where the sweet spot should be and the toe pick, to use for spins and twizzles.
Ultima blades are like edgy whitewater playboats. You can initiate tricks quickly with absolutely minimum motion. That may be great for a skilled figure skater, but for a perpetual beginner like me, a more beginner-friendly blade like the MK Dance, which requires more rocker roll to initiate tricks, and doesn't require motion be controlled to as high a level of precision, is much better.
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Alas, MK Dance blades are not beginner-friendly in price.
I wonder if there are any cheap MK Dance clone blades. Ultima Dance are advertised have the properties of MK Dance, and are cheaper, but they definitely aren't similar in rocker profile and feel.
I've tried rental skates with true beginner blades, and didn't like them. I'm not sure I spent enough time to get used to them, but they seemed too stable and it was difficult to reach the toe picks. A little too wide and slow too, and the tails are too long.