I practice putt a lot, but I find that I never build off of any "aha" moments that I might have. For example, a couple weeks ago, I tried to keep my hand below my elbow while putting to try (as I always am trying) to keep the release point a little lower and remove the hitch from my putt. It worked really well - I was making everything while I was practicing that day, and I putted well in the tournament that weekend too, with only a couple misses in the circle. However, fast forward about a week, and my body just decides that that cue won't work anymore. While trying to do the exact same thing that was working successfully a week ago, releases feel unnatural and the putt lacks power and smoothness. So I just suck at putting for a while until I think of the next cue ("nose up with the wrist, but still putt flat", "spin the disc forward with the hand, aim/throw with the arm") that works like magic... for a few days.
Anyway, this could just be a me problem, but I thought I'd ask anyway in case this is more common than I thought. Even if you don't have this exact problem, I'd love to hear anyone's approach to putting practice.