Okay. I tried it this afternoon on a tight, wooded course. I think the 1-meter informal penalty is far too punitive for C2 and longer step/jump putts. In many instances, it totally changes the shot: different trees in the way, a different disc needed. Perhaps it is reasonable for near-C1 putts when there is no way to measure or no time to measure. I played two rounds today. Shall play another tomorrow hopefully and see if I still feel the same way. If so, I'm back in the "keep the circle" camp!
Good evening.