I am in the market for a new putter since my putting has been so bad at times, but I'm not sure about the ZT stuff. Only a few look decent at address to me. I like how they seem to swing easier, but except for one time I don't even putt well in the store with them. I have a strong arc stroke and they may just not suit me.
Recently I did some experimenting and found I putt better from short range inside 4-5 ft with a blade, but better from long range with a mallet. All blades and mallets were toe hang, but the blades toe hang more and maybe that helps with my strong arc stroke? I tend to pull short putts with the mallet until I compensate and push them lol. I did carry 2 putters for a brief time years ago (belly and std mallet), but I don't plan on doing that again. Maybe need to try the claw or pencil grip or just close my eyes 😞