SP, I don't understand the scale problem. I putt based on a percentage of the scale. So if one is on a 30-foot scale instead of 25, you just need to use a different percentage. I imagine if you don't have the Putter Pal it could be a problem, but I have those from my CC.
To everyone, thanks for the info and advice. My comments are still on moderation, and my last comment didn't show up for a long time. Hopefully this one goes through a little more quickly. This thread has been helpful.