In August I was happy to report about the new invention of TaylorMade, namely:
"SLDR driver incorporates a complete reinvention of TaylorMade’s movable weight technology (MWT), making it more effective and easier to use. SLDR driver features a blue, 20-gram weight that slides on a track located on the front of the sole."
It seems to me Callaway Golf is following this trend by adding a more sophisticated version of movable weight technology called Adjustable Perimeter Weighting for maximum distance from a total performance driver. Big Bertha has 20% higher MOI for more forgiveness and almost infinite number of Draw and Fade bias options (see picture below).
If you had the chance to play/try the new Big Bertha driver, then please share with me your experience.