I've tried again with Nolo and beta version 18.104.22.168. , this time leave the headtracker on the desktop, and yes, I could verify that the compensation is effectively off when Nolo is running. I had to use the shortest headtracker base and place the headtracker behind the light of pimax, everything seems to go now fairly well. Also the drift almost disappeared with this version.
There is still a little problem with Nolo, this would not be your responsibility but you could help improve it, even thinking about improving compatibility with Pimax 8k in the future.
My idea is to use the original compensation but this time in a custom way, since the position of the Nolo headtracker on the hmd varies according to its shape. Doing it based on the height and length of the position difference between the headtracking ball and the center of screen (something like in the image below) and these measures can be changed in boxes within Piplay. all this would allow that the headtracker could be placed where each user finds more comfortable depending where it has the basestation, even just above the head for those who have the basestation in the ceiling.
Thank you again for the support