For comparison I sent my son's regulator setup out for service (not Sherwood though). Scubapro Mk10, D350, and 3/4th gen Air2.
$35 per stage for service
$28-43 per parts kit
$35 for a new Yoke retainer
$8 for a mouthpiece
So all in, was about $245 before shipping
Could I have done it myself - the Mk10, definitely (have done a few of my personal ones this week).... The D350, no, not at this point (though I wish I was proficient in adjusting one - seems a little stiff - hopefully it will break in), and same with the Air2 (too many special tools between the 4 generations of Air2s that I have)...
$35 per stage for service
$28-43 per parts kit
$35 for a new Yoke retainer
$8 for a mouthpiece
So all in, was about $245 before shipping
Could I have done it myself - the Mk10, definitely (have done a few of my personal ones this week).... The D350, no, not at this point (though I wish I was proficient in adjusting one - seems a little stiff - hopefully it will break in), and same with the Air2 (too many special tools between the 4 generations of Air2s that I have)...