CMcCartney727:Playing different green speeds all the time (I play rg's a lot) doesn't help.
I'm on the fence about this, CM. I play them a lot too and find that the differences in the speeds is magnifying the differences, making it slightly easier to adjust to each one. I'm just not sure how much it's lousing up my putting. Like you, some days you're sinking everything in sight and other days you're scrambling not to 3 putt.
I think you might be underestimating the Championship greens by about 15%. I use the 45 foot scale on my Redwood for 11-12 ft putts on VF and T greens. I use it for 15 ft putts on C greens. The biggest difference is with down hill putts. There's a momentum factor when the ball starts rolling that is hard to describe. Just because it says 4" down hill doesn't mean make a 4 foot adjustment. Conversely, uphill putts obviously slow down quicker, just not as fast as they normally would.
Try shifting your scales on the C greens. Where you would normally use a 30 ft scale, try the 15. Or instead of the 60 use the 30, something like that. Unfortunately, those C greens only appear in that 1 RG on KIA front so it's tough to get practice on them. I just remember what I did in the Opens. I actually prefer them over all the rest. GL