Removing unnecessary servo threads?

I’ve put this off because its so embarrassing, but its time to clean things up and move to 2.8…

When I built my CNC router (~ 5- 6 years ago) I was very excited about using Technic step-and-direction servos. I still am - they’ve been great! As I recall though, I was initially confused going through PNCconf as to whether I was setting up a servo machine or a stepper. I learned of course that as far as LCNC is concerned it's a stepper and I got things working by editing the files I generated initially with PNCconf. The machine is running very well, but as I look through the .hal and .ini, I see lots of what seems to be deadwood; servo-related threads and pins generated by PNCconf for a servo machine which should probably be cleaned out.

So questions:
1. Things like:
addf motion-command-handler servo-thread
addf motion-controller servo-thread
addf pid.x.do-pid-calcs servo-thread
addf pid.y.do-pid-calcs servo-thread
addf pid.z.do-pid-calcs servo-thread
addf pid.s.do-pid-calcs servo-thread

2. Am I better off going through PNCconf again and starting clean, or are there some basic rules for what I _don’t_ need that I could just hand-edit out? My other changes to Hal and ini are not super extensive, on the other hand there’s something to be said for going forward from a known reliable base.

Thanks

FWIW the machine is a gantry-style CNC router running Technic step and direction servos on 3 axis and a 3hp WC ATC spindle. Using Mesa 5i25/7i76 with Intel core I7 host. .hal and .ini attached 'cuz I know you'll ask

The standard PNCConf hal files use the step generators in velocity mode
so the PID components are required. This mode is more robust with regard
to servo thread jitter than the built in position mode so is recommended.

2.8 has better support for gantry. Which means slightly different file structures. You can have the best of both worlds though. Save the original folder, upgrade to 2.8, run pncconf. See what works and doesn't, reference the old files for corrections. If all else fails reinstall the original linuxcnc version you had.

Ok guys, thanks!. Guess I know what I need to do

Thank you Andy. I did understand that about the servo thread. Wasn’t quite so sure of the pid calculations and Hal pins though.