Having trouble dialing in your putting on GSPro. First, practice, practice and practice some more (looking at you Celeras). After that, use the putting charts below or download the tables to figure out the distance travelled on a flat green based on ball speed and stimp you are playing. Credit to @sfr for compiling the original data used to generate the plots. Note, page is best viewed on a monitor or larger, but plot can be scrolled left/right on smaller device displays.