Hi Guys
Speaking here as someone who favours the "lofted putter" now and again, it seems to me that the question can be broken into two parts.
"Wedging one" can be very erratic, dependent on green speed and wind. The difference between fast8 and fast9 for example, Best of Putting, is large. Factor in Champ13s or T12s and it's not something I use on a regular basis, aside from the p*ssing people off factor in multi player.
Wether using spin would help I'm not sure. On the faster greens maybe but with my wedges (ATVs) any hint of spin would see my ball coming back past me faster than it left. Aside from that, some courses take spin better than others. St Andrews for example, wedging one can see the club whoosh through under the ball, resulting in a "hop" of a couple of feet. Chambers Bay works much better.
Just my thoughts . .
Cheers!
Rich