The big differences between the AVX and the Pro V1 and Pro V1x is the spin rate trajectory and feel it provides. The AVX is the lowest-spinning and lowest-flying of the three models and it also offers the softest compression.
As is the case with all Srixon models the Soft Feel features an Energetic Gradient Growth Core that produces low spin and high launch for outstanding distance. The Ionomer cover on the new Soft Feel is softer and thinner than in the previous model allowing for improved spin rates on short shots around the green as well as an overall more pleasing short-game feel.
The reigning PGA champion uses a Cameron X5 fang-style mallet prototype. This custom model features a flow neck rather than a double-bend face-balanced design which allows the putter to more easily swing on a slight arc. He also favors a SuperStroke grip in this case the Pistol GT Tour.