Welcome!
If I can read into your questions, it sounds like you’ve bought the set of bits and are eager to start your business.
In my opinion, now is the perfect time to do this.
The first steps I took here were to look through the forum for posts about grooves done by others who have the same car as myself, and follow their process. Then I discovered that the groove could be applied to small engines, so the first time I actually cut a groove was in my dad’s mower (I’m an apartment dweller) - and having had a good amount of experience with it when I was younger, I could tell as soon as I started it something was different. It started easier, could idle lower, didn’t start in as large a cloud of blue smoke and smell as dirty, and it cut through longer, wetter grass and mulched leaves without having to increase the throttle. (Dad has said he doesn’t fill the fuel can as much anymore either. He asked me if I could do the same to the snow blower, but I haven’t gotten around to it yet.)
With that experience in hand, I took to my daily driver. I documented the process here, and it’s one of the most viewed topics on this forum. From there, I’ve grooved a bunch of other cars for friends and family, and everyone has been happy. Get them to talk about it in their circles when the opportunity arises, and see where it goes.