DOES THE HDK SUSPENSION K-MEMBER HANDLE BETTER THAN A T-BAR SUSPENSION?

Speaking of RMS, here are my upgrade's that IMO addressed areas I felt needed some simple and little weight gain improvements, that gained some measurable stiffness improvements, and with the weight penalty of less than 10lbs, and all had below the COG. There is more here that this Pic doesn't show, for instance the shock/spring towers are fully boxed now.
What were the measurable stiffness improvements from your modifications?