So I do now have the new phantom X 5.5 with 20G weights. This is the standard since I was fit into the 33" (I'm only 5'8") which helps get my eyes more over the ball. I've had weighted putters but not ones that were interchangeable before (very old scotty studio style newport, odyssey jailbird mini). So, I've made use of high density lead tape which definitely helped. I'm just getting started with the phantom but I won't be shocked if I end up getting the 30g weights at some points since I mostly play public courses which are a bit slower green speeds and I would like to not have to feel like I'm swinging it so far back and through to get the ball there. Plus, the weights are easier and cleaner than sullying a scotty with lead tape. Happy to answer any questions.