It was a punt for me. Its a different design to what the toyotas use. But having heard from a real person who has used them, and given theyre not reaching deep in your pocket like anything toyota is, i gave it a shot. The compensator i had was off a pump i bought used. Sposed to be rebuilt. I have not got to trying it yet and just stole the compensator. It is not an eccentric pin like all the hdt pins i see. Leads me to think it was a high altitude comp. Tho i have not seen what their pins look like.
All i can say is ive tried 3 different grinds, and had really wide results, some amazing. I decided the Holset was making a bit much boost tho for my yet to me cooled setup, so reducing boost and retuning, the other pin was back to stock angle.
This zexel pin has taken it to another level. Albeit at lower boost, im making better power actually than the best tune i had with higher boost. BUT its obviously all super dependant on your own motors setup. I took a punt on this pin as it was worth a case of beer. And its flavour turned out well!