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.
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.
For players who demand more workability in a driver and more specific tuning the TS3 is the choice. Both the TS2 and TS3 are available with Kuro Kage Black Dual Core 50 Tensei AV Series Blue 55 HZRDUS Smoke Black 60 and Even Flow T1100 White 65 shafts as well as other custom shaft options.