just providers who once had a public persona, but now have a stable regular client base and no longer feel the need to publicly advertise or recruit new clients. Nothing all that mysterious. Introductions can be brokered for new fellas, but there's a reason a lady goes UTR ...
Just a curiosity, but any UTR providers can certainly PM me. By the nature of being UTR and not doing any advertising, how is a UTR provider found? My guess is that those very active hobbyist's will hear about some from providers they see or they follow a former provider that goes underground. How did you find your UTR provider?
With a backhoe
just providers who once had a public persona, but now have a stable regular client base and no longer feel the need to publicly advertise or recruit new clients. Nothing all that mysterious. Introductions can be brokered for new fellas, but there's a reason a lady goes UTR ...
LOL; some UTR don't even know they are UTR. Seriously.
Strip clubs or strippers.
Sugar babbies;
That is one advantage of befriending fellow TER members. For example, there is a back page girl in Western Maryland that caught my attention; a TER pal who is near her ended up taking one for the team. He confirmed the pictures are real. My point is that reaching out to fellow TER members is a source of UTR girls and general intel.
I consider myself a semi-professional hobbyiest. And with at least 4 UTR off the top of my head. The only issue about sharing this intel is that I am not comfortable sharing with people I do not have rapport with.
I have been considering starting a group of some sort; many pros and cons to that though and still debating about doing that.
If you are a REGULAR hobbyiest and interested in sharing intel, etc. feel free to drop me a PM.
Any my answer to that is: YES, if you have the time and patience and ENJOY the hunt.
One dancer that I see for $$ even is super hot but only a 7 on performance.
Another girl I consider UTR is a girl that has one TER review on here. She isn't the best business oriented and most organized girl out there. I think she discourages reviews. My point is if she even gives a slight effort she will be more well known in the community.
I am giving the SD/SB thing a try and went out on a few dates; A LOT OF WORK to search the sites, etc. Again, YES, if you have the time and patience and ENJOY the hunt.
within wheels in the hobby. There are UTR providers who are only accessed by what I could loosely describe as a club. Seriously. Those ladies do not have to advertise. They have their clientele.
I'm not one of them but I know about them and no, I'm not telling you how to get into that inner circle! 
There are probably inner circles inside the inner circles and inside of those that I have no clue about
In fact, I'm certain of it. But I have it on good authority. Funny world, the hobby.
When you get to that level, you won't have to ask, you'll know
OTH, with so many options that are available, why look UTR?
Having been on the inner circle prior to walking away from the hobby for 3+ years, I can verify what you were saying. I at one point had UTR ladies contacting me, and asking me to come see them.