So I go and get fit for a putter and it was between Phantom 5 or 11. The fitter said I needed the face balanced with my stroke. I didn’t like the look of the putter compared to the 5.5. So I went with the 5.5 and had it bent 4 degrees flat. I know the face balanced story and believe in it but the 5.5 has improved my putting and confidence level. I make more putts than I ever have. Shot my first ever even par round and had 24 putts. So to me I think it’s whatever fits your eye more than the stroke.