A slightly rounded toe shape and wider area in the front of the shoe improve traction and comfort while foam sockliners mold to your feet for improved fit. The Sport BOOST 3 is also built with an “Energy Sling” design that helps direct energy transfer more efficiently.
Though Srixon has long been known for impressive forged irons the woods were always high-quality products that were often overlooked. With the new iteration including most notably the Z 785 driver things are about to change in a big way as new technologies and materials have brought ball speeds (and distance) up to the level of the longer drivers on the market.
A significant key to the Hot Metal design is the use of stronger and more expensive Chromoly rather than carbon steel in the manufacturing process. The stronger material allows for a multi-thickness cup face for more ball speed and distance than the previous 900 Hot Metal as well as redesigned sound ribs in the cavity for precisely tuned vibration and feel at impact.
However I’d say it’s unlikely that a new iteration of the Mini is coming any time soon. Modern fairway wood designs like TaylorMade’s M3 and M4 for example are so good and so long that former Mini players can simply find the right fit and most likely get the same or even better performance.
Among those I’d start by looking at models from Bettinardi Evnroll SeeMore Happy and Bloodline. Each of these companies make high-quality products at varying price points. Furthermore they can perform exceptionally well provided you find one that fits your stroke eye and feel preference.