I am no climber ... so I am not understanding your terminology
What is prussic and prussing?
One bit of advice I can offer to a climber is to make fast the bitter end of the halyard by using a bargemans hitch round the winch
.. It is not that I don't trust clutches... but it is my body going up the stick..
For other advice, I use an ascender with a long pair of foot loops and a grigri for goung up. I have found that I get better control and balance if I pass the line from the foot loops to the ascender through the climbing harness. That way you affectively anchor
your effort close to your CoG.
Using two foot loops allows you to use your feet to guide yourself close to the stick whilst going up.. Tnink about mast rake and the effect of your weight at the top of the rig. I can also stand on the foot loops to give myself the extra few inches right at the top if I need to do anything to the lights Etc.
To come down I remove the ascender and use the Grigri as a decender clutch
.. The STOP on a separate rope is the backup.. You need to hang a bucket full of water
on the safety line so the STOP can work...