I was in Arizona recently talking with a Pro about what they view as the life of their Vokey Wedge Grooves. We discussed the new Hand Ground Wedges vs. SM4 Oil Can Finish vs. SM5 New Finishes. We thought that the approximate life of some finishes vs others was dramatic. Could anyone shed any scientific or specific knowledge of these three types of wedges. Someone had at some point I thought mentioned in this forum that the new SM5's have a longer groove life compared to Hand Grounds and the SM4 Oil Can Finish...thoughts?
Thanks!