That is a bit amazing. We are legion.
You could try a barbershop employing some senior craftsmen. They should be able to help you and would probably relish the opportunity to teach.
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I dunno. One barber shave 40-years ago and no shavette history, myself. I remember my first barber- and personal shaves quite vividly (as I'm sure you will!). I sent a flea-market Sheffield to a honemeister and it came back with an "edge". I could hear it cutting whiskers on the first stroke but didn't feel a thing. Had to feel my cheek to see if anything happened Smooth as silk.
The next few shaves went right in the dumper as I mangled that fine edge on a strop. No video for that.
There is light at what ought to be the end a very short tunnel if you already get a good shave from a shavette.
Good luck , most razor makers , really want to make a razor and sell it Not maintain its,but you can see , but if you get the same edge back won't that be like the definition of crazy , send it to one of these guys who shave with a razor , Hart seems like a decent razor , it's not a lot of money , so spend a couple bucks making it a great razor. Tc
If you wish, but this would be your inexperience talking. If you are going to be talking about paying for services, which you would be if you send it back to Hart as they will charge you for a re-hone, you would be better off sending it to one of the gentlemen on this forum offering honing service in the classified section. These men will have much more experience at providing the edge needed for a quality shave.
It's not the quality of the blade, so get that out of your mind. It's either the edge or the user, or both as I mentioned before.