I got the 35" Spider ZT - played first round with it yesterday
Last 8 rounds, avg. putts were 1.78 (range was 1.61 to 1.94)
Spider ZT first round, lowest I've ever had (=best I've ever putted in my life) with 1.50 (27 putts)
It is point and shoot. Prior putters were heel/toe or face-balanced and had intermittent success with all of them especially the heel/toe weighted Spider Copper and most recently the Spider Tour X face balanced / double bend - when I say point and shoot, I certainly had to use more of an arc stroke with heel/toe weighted putters and a bit more straight back / straight through with face-balanced
Success with this putter, for me, has come from not thinking about how I take it back, just take it back naturally and putt to the hole or target line and putter does the rest - I was hoping for these results but didn't want to set myself up for disappointment either. Hoping it continues but I don't see how it couldn't - yesterday I made all the putts you would expect to make and then a good 5 or 6 that I made where you hope to make maybe ~30% of mid and long putts.
I have a putting green in the backyard and they continue to drop.