Jea48, Nice posts - they should put some of this into prospective.
FWIW, I've got nothing against Taters, but do you note that he has NOT contested Kevin Deal's version of what occurred in the contact he made with Upscale which led to KD's rude hang up.
I think a lot of folks like to call KD for tube advise and exploration of possibilities that don't result in sales or could/would result in mis-matching and subsequent warranty issues for him. And it is advise that you often won't get from other dealers.
I don't know Taters amp, but I've owned ARC amps and they aren't a walk in the park to re-tube. When I had mine my dealer made me send them back to ARC for any servicing including the simple replacement of a resistor in the bias circuit which was burned out by a shorted power tube (ARC uses this resistor as a 'fuse' in most of its amps I believe). He also complained about the difficulty of the re-biasing procedure. Clearly he just didn't want to be involved.
I recall a dealing with a tube vendor, mentioned above, some years ago when I did my first re-tubing of my SP10. I was ignorant about the demands it placed on tubes and the tube types that had a history of success. He gladly sold me an advertised 'set' of tubes that were (as I know now)doomed for failure, and they did shortly after I put them in. You could sub that experience in for some of the experiences that KD was trying to avoid. BTW, I never bought tubes from him again!
In my experience Deal has a 'personality' which many will not appreciate. But if you NEED advise on what tube to use in your equipment, and he has personal experience and the tubes, he is an excellent source. And, his service is excellent. Now if you know what you want to buy and you don't want someone to challenge you, don't call. Others will be very happy to help you and save you a lot of grief. If you just want to bullshit with him, and expect differential treatment, don't be surprised if you don't get it.
Also, consider, how many B&M (or internet) dealers have tubes for sale and know what they are talking about regarding their proposed use. Lots of generic advise, perhaps, as is commonly given here, but not much more. Most equipment dealers I have run accross at least pretend ignorance about 'tube' selection issues. Makes life so much easier for them.
FWIW.