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.
One of the somewhat surprising successes for Srixon in recent years was the Z U65 utility iron which very nicely blended the distance and versatility of a hybrid with the added control of an iron.
Remember the Mini came in 12° 14° and 16° models and had a 43.5″ shaft. If you want something like that a custom-fitted M4 fairway might be about right except it will probably offer even more ballspeed and forgiveness.