On several occasions, with the Spider putter i have not been able to reach the hole with a full meter swing. Here is why...the putt is 23 feet and 5 inches up hill. You are given the 25 foot swing...not the 50 foot swing...and of course on that putt with the incline, you will need something near the equivalent of a 28 foot swing to reach. So, the put ends up traveling around 21 feet. WGT needs to look into the issue.