You know Michael, in your location, there must be a grillion small engine rigs. Snow in winter, grass and crops in the summer. Leaves in fall, field preps in spring... you definitely have the "touch" for this Groove work, and the ability to communicate about it.
I don't know what is a good price to charge when Grooving such small engines. But you must be SURROUNDED by them. Simple to do, pretty quick too. The Groove, adjust a spark plug gap, maybe mention the use of the friction reducing stuff in the crankcase, etc. Then there's Farm Equipment, maybe as well...
Anyway, as you may know, the Secret Service uses certain "handles" to identify their Presidential charges.
I tagged Greg K in Canada as Dr. Dude a few years back...
Whilst I have no Special Authority, I do have Imagination...
"Gadgetmen- ATTENTION ON DECK!" (hundreds of boots stamp pavement as one)
"As a Certified Gadgetman and by no Special Authority but that of Imagination- I hereby tag Gadgetman Michael Lee, as Surgeon!"
"HOORAY!! ALL HAIL SURGEON!!" ( thunderous applause, cheering)
Tracy G