I have a mid-90s CQC-7 collaboration between Mr. Emerson and Benchmade (good knife, no problems, I'm very impressed with it - details as I recall from the 1990s regarding the knife were 154CM steel IIRC, tanto, non-combo blade, chisel ground on one side, 50,000lbs tensile tested blade, zytel handles, hex-screws with allen wrench needed on blade and clip to adjust, titanium liner lock, etc) and am thinking of purchasing a newer Emerson version the the knife (EMERSON CQC-7 TANTO 3.3" B-T COMBO). My questions are as follows: (1) What changes have been made to the new knife from the one I now own? (2) What was the reason for these changes (i.e.: What improvements were gained by the changes)? Thank you.