Spyderco Endura ZDP-189 Slicergrind

A couple of days ago i modified this 5 year old Spyderco Endura ZDP-189 from a saber/flat ground to a saber/hollow ground knife with the help of my trusted Tormek T7 fitted with an SB-250 Black Silicon stone & a modified knife clamp.

Previously the knife looked like this (with an already reprofiled edge of 25 degrees inclusive):

Now the knife looks like this.
Although the edge was only marginally thinned to 22,5 degrees inclusive, the area just behind the edge is much thinner now at +/- 0,3 mm, making the the knife cut better noticeably.

Just because it's possible i thinned the edge of the ZDP-189 Endura a bit further with the help of my Tormek, and according to the angle gauge it now measures 17.5 degrees inclusive.
To have enough strength the edge needed a very small bevel (just visible, but not measurable for me), but now i can cut into the edge of a piece of laminated desk forcefully without rolling or chipping, and also without any noticeable loss of sharpness.
Thickness behind the edge now: 0.18-0.20 mm.