i'm a raw novice but dont see how one of these toys can help apart from telling how far you've driven.(big willy contest)i already have a good feel for which club to use by eye and yes i can be 10yds infront of the green or ten yards past (rarely) but this is down to an inconsistent swing nothing else. ok so your toy says 147yds to the pin ...you still have to hit it, sorry swing correctly. if you can hit it consistently then surely you dont need one. just get an iron byron thingy to take all your shots.