Maker's Mark works fine, idk how good it'll be because you have to decide between that and Muscle Memory.

So you use it on the first step, it gives the buff. Now Flawless Synth is 0 cost and 0 durability lost. The buff lasts x steps but then changes depending on progress. They'd put it at a set # of steps but flawless synth is still 90% success so if you were to go at it without steady hands there'd be some variation.

Precise Touch, from the sound of it, has as part of its own effect to add a IQ stack, while IQ would add its own stack on success. So you'd get 2 stacks for the 1 touch, up to the max stacks.

It's Byregot's Mircale that truly looks terrible. Either early on where you wouldn't want to set yourself back on stacks or later even moreso + it not being as good as other options. The best scenario I can think of is using it at 4 stacks, if it lowers to 2 stacks before adding the stack for the successful touch, you'd end up with 3 stacks instead of 5 with a 140% quality increase for a low amount of CP, something that might be good to do on an excellent early on.

We'll have to see how the math pans out with the stats and difficulties.