I'm old school and still just know AZ for accuracy work on any ole rifle. If a different brand I could add a tuner or two but ............ .
Do keep in mind "accuracy " tuning can get costly as there is always a chance you'll be needing a barrel. You need to develop a relationship with your tuner , you must accept their advice on and on.
Many FT shooters would love to shoot just as close to 20fpe as possible! Just a few years ago this was often done , for a reason no one I know of have absolutely figured out yet, very very few current made rifles/barrel shoot "best" at a full 20fpe (935fpe with heavies) and some well know tuners will now just tell you straight up, Nope cant do 20fpe AND best accuracy.
Sometimes even after the best works on it, due to micro burrs/other the barrel may still require cleaning every 50+ shots , rare as a good polish should take care of that but not always THEN, do you want to buy a new barrel or go forward? Then lot's of fun when you have a proven good barrel installed and , opps, still needs some tweeking.
That said I'll bet any decent tuner ( you might search the BR world if looking for even more optiuons) can find things you haven't even noticed such as any rattle or movement of any part during firing,sets up vibrations that , may, effect harmonics and with FX seemingly running at 100% of capacity there is certainly some chance one or two rifles may not have been assembled in a 100% blueprinted mannor, tuners really help out there.
And last , 5-6 weeks would be a great tune around time .
Keep us posted on your journey.
John