For me, after playing with CB radios for the past 11 years, and being members of numerous forums for years, I think frmboybuck has a good point. Few techs do I let inside my radios. I would rather run a stock radio than a butchered one.
I have a radio tuned by RollingRadios and I'm real happy with it. No cut limiters, no removed/disabled AMC circuits. It sounds real good on the airwaves which is my objective. There are limited techs I would recommend based on my personal opinion (but not necessarily personal experience), and listed in no particular order, Richard SSB 8541, Justin, RollingRadios, 307, TwelveVolt (Quackshack), Rogerbird, Doc's, Bob's CB. Each has their own way of tuning radios without trashing them (i.e. Butcher them).
I know I corresponded with DTB Radio asking him to remove RollingRadios from his blacklist (which is NOT his, a link as he stated). He had a different opinion, but his email was very thorough, professional and knowledgable. I was impressed by his demeanor then as I am here now. I would not have a problem sending a radio to him either and see how things turned out.
Many people have had good results from Frank at 1Stop. I would not hesitate to send a radio to him either and see for myself the results.
I have purchased many items from Coppers over the years, but shy away from letting them tune my radio. Don't know why, just a gut feeling. I may be wrong.
Bottom line for me is this list of who I would send a radio to, and pay for a tune, shipping, etc. is less than 10 people/companies in the world.. I don't claim to be the most knowledgable person out here, but I've always been told I have real good common sense, and that is one thing even I agree with.
If you are someone looking for the who-is-who? of tunes that have reputations to uphold (for good clean audio and performance), maybe my post is for your consideration. If you just want to be loud and don't care how many channels you splatter, look elsewhere.
I hope I did not leave anybody out of my top "10" list.
Alsworld