Okay, I may get chased outta here by players carrying torches and farm tools, but this suggestion is based on real-world conditions. Allow me to explain . . .
I was watching an interview with Tiger Woods after the second round of the PGA tournament at Bethpage a few weeks ago. Tiger described the difficulty in playing the greens by saying they were very different from the day before (rain overnight) and were totally different from one green to the next. He said one green would be sticky, and the next would be slippery, etc.
I thought, "this would be like playing a round where one green was very fast, the next one standard, then tournament, then slow, then fast, etc. A random choice would be made on every hole and would be displayed on the green condition tag during putting. Could be an interesting setting for Skins and Alt Shot games.