If you buy a Delica/Endura with the ZDP189 in FRN, make sure someone on the other side of the phone looks at the blade.
The boon of "continued improvements" is a seamless integration of features, usually without a price increase. The problem is that you might buy one that's been sitting around prior to the "continued improvement."
Most major inventory stocking retailers wouldn't mind checking the box. It only expends about 1 calorie.