Best man for the job?

So I’m thinking of sending my 2 yr old .25 Vulcan in for a tune up. I have considered delving into it myself as well but due to my miniscule (non existent) experience with regulators I figure it to be worth the time and energy savings to allow one of our many gurus to take a wack at it.

The gun is very accurate now but I know the air efficiency and harmonics could be improved as well as the trigger which is very light and seemingly less predictable than I’d prefer. I was slinging JSB Heavies @ 812 for avg for 45 shots or so.. As the reg broke in I seem to be at 775fps average.. a bit low for my taste on this pellet.. if like about 850ish and am willing to lose a couple shoylts if necessary. The gun loves these pellets and makes it tuff to miss critters lol. Lastly the pinging resonance near the ear needs further dampening.

So anyone know who might be the best person to tackle this gig, and perhaps price or contact info?

Thanks in advance guys.