Browsing through I saw the previous ulu jig and I figured I'd toss this up. I'm finding this design really flexible but most importantly I'm able to place my fingers directly behind the blade to keep an heat buildup. I really like the ability to very accurately dial in the bevel to chase it up the blade or match an existing bevel.
Fantastic! The only time I have seen something close to this was on Taylor Blades’ channel. You can see his jig in the screen shot/ thumbnail and in action at around the 7:23 mark in the video. A little different but the same concept is there