Thanks!
However I don't really fancy either of the pin placements at St Andrews H1 for mapping. The hard pin is not entirely flat and the other two bring the creek into play. Also there's the issue with wind at St A. Even low wind is still easily 10mph. Yet I shall give it a shot if you tell me which pin you recommend.
My mapping is (just) off-ding and I know my PW 100% no spin is 124yds. 120-123 is also managable with a an increasing touch of backspin. The rest is guessing.100% power full backspin is anywhere between 107 and 114. Today I played the back 9 at Erin and my longest putt at 25 feet came following my only PW approach. It's as if my combo of ball and PW drives VEM into another gear.
That chart is fairly accurate on my 9I to 7I, but otherwise not. Eg full power no spin with 6I and 5I hardly goes longer than their given yardage. In fact the 6I I've mapped to 179 yards with 100% no spin (again all just off-ding).