Helper say now 3/4 swing -will this help? if the ball is over he will say now half swing, will it help, now the ball is the water ? he will say little more than that ,then will be at the edge of the green. Is it necessary for another to say more, less etc etc Can this be achieved in a driving range for accurate distance -NO- balls different, surrounding different take off surface different, then is it possible to achieve in a academy -You decide ?
Take note visuals of the surroundings give different feels. Open air vast greens with no trees anywhere near , is the most difficult as judgments are so lonely. Try doing this in a dessert or on top of tall building seen only the vast sky