Do you use them simultaneously in different systems? It may be a worthwhile experiment to have ARC retube one amp, and retube the other with tube depot.
I have a VT100 mk II. When I bought it, the tubes were going bad. I tried to retube part of the tube compliment piecemeal via tube depot. I got frustrated because of bad luck and inexperience, and eventually had ARC retube it and replace a few of the other internal components as well (an advantage of sending to the factory is that they can check the whole unit, beyond the tubes).
Not sure if I won't try tube depot again when it comes time to retube, but for what it's worth, I haven't had any problems with the tubes ARC supplied at all!
I have a VT100 mk II. When I bought it, the tubes were going bad. I tried to retube part of the tube compliment piecemeal via tube depot. I got frustrated because of bad luck and inexperience, and eventually had ARC retube it and replace a few of the other internal components as well (an advantage of sending to the factory is that they can check the whole unit, beyond the tubes).
Not sure if I won't try tube depot again when it comes time to retube, but for what it's worth, I haven't had any problems with the tubes ARC supplied at all!