The latest version of PP Stargazer is 9.21 as of July 2021. Since version 9.12 which came out a year or two ago fixed the lock in speed and made the system lock in very similar to a zero off system.
Having said that, this is with 3-event, not wakeboard edition. The wakeboard edition I believe does not use the RPM at all.
If your master module is fairly new, I believe you can order a "stick" from PP to upgrade your master module software to 3-event and this will help tremendously with slalom and help with the lock in quickly, and no surging as it uses both GPS and RPM to govern the servo.
And FWIW, here's a little story: (I have a 2003 Sunsetter LXI)
I ordered PP Stargazer about 10 years ago. I forget the exact year. It was 3-event with version 8.x of the software. It worked, but had the classic problem of locking quickly with a short setup to the course, and surged at around ball 2-3 of the slalom course.
A few years ago, I upgraded to version 9.0x (with a software upgrade stick) and was then able to modify the background settings which fixed the surging issues in the course. Yay!
Then last year I upgraded to 9.12 and this made the lock in similar to zero off. So I had a pretty sweet system. No surging in the course, and locked in quick.
This year, I thought I would try to get closer to a zero off pull and ordered the PP zbox unit. PP said my Master module was too old and I would require a new MM that could handle the voltage needed with zbox. Okay.
I guess I just wanted to clean up my segment times and have the "accelerometer" aspect as part of the system. At first, it felt like a harder pull, but it kept the boat running how it should. Kinda like how when zero off first came out... most guys hated it because it was a less forgiving pull, but eventually you prefer it as the boat "holds" the speed it is supposed to run at.
Anyway, for the non-tournament skier, yet shortline skier, the non zbox stargazer 3-event system with version 9.12 or higher will be awesome and you'll love it.
Okay, so now I upgraded my system from 9.12, to 9.21(with zbox with a new master module) and I'm left with a spare 3-event master module with 9.12.
My buddy across the lake has a 2000 Sunsetter LXI.
He has Stargazer wakeboard edition. Not sure which software version, but he had the dreaded surging in the course and frustrating lock in times. So, I thought to myself that we could swap out his master module with my now spare 3-event at version 9.12.
(Scottish Whiskey was part of the transaction)
We go to hook it up and try it out, but he had no rpm sensor cable. Balls!
Okay, so we order an RPM sensor from PP and install it.
We take it out, map the course, run the autocal baselines. Run a non-skier pass.
Boat locks in beautifully and it is night and day difference!
Run some skiers and nothing but smiles.