Pretty happy with the HBI on my P10F.  Also had one on a P10C that I sold to a family member.

I’ve used both cajun and HBI. I got the cajun for my p10c. I like that the take up is adjustable. That was the selling point for me. The reset is also very clicky. At a competition, the timer guy said he could hear it while I was shooting. The HBI is very nice too and a little more rounded on the edges. Either would be fine but the cajun was my preference. My finger skin does get a little sore after a full day of shooting. Not sure if im just a baby.

Both of my P10c/f wear the HBI.  They came with them so I did not choose them.  They are ok, not really measurably different than the stock in my opinion (which I felt was pretty good).