Different valves for different tastes. 6V6 are my favorite ones for their warm sound, especially with humbuckers. 6L6 for single coils and blackface, sparkling scooped sound. EL34 for biting tone, great with all kinds of pickups and guitars. Don't personally care much for EL84, but they are...
They sound very different. Both can work, with DR having more headroom if you need it. I prefer the PR for its sound and light weight. I did change the speaker though, so now it is very close to the volume of a DR.
The point where, worldwide, financial problems from this epidemic will not be our first concern unfortunately seems to be only 1-2 weeks away for many countries...
For most musicians, what is their secondary source of income...Teaching. Now guess what's closing down all around the world after (or even before) live venues..
My guess is, give it one or two weeks and music gigs will be a thing of the past for most if not all countries (already are in mine), at least till the epidemic is somewhat controlled..
If it doesn't subside as the weather improves in the northern hemisphere, of course live music and sports are largely gone until further notice. Already a huge percentage is being cancelled.
There's always the possibility of a problem in a sale/purchase, so a few questions beforehand let you have an idea about who you're dealing with.
Any signs of attitude and it's next person in line.
In thousands of gigs I've never needed a backup. But I do use good gear that I know thoroughly and is dependable, keep it in good condition, and install locking tuners in my electrics.
If I bring extra guitars it's because the music needs them. I was never big on carrying stuff I guess.
In my experience, the best way to form an opinion is to gig both for a while. In time the strengths and limits of both tubes and ss become obvious. It's nice to have both as options.
If looking for blues sounds out of a tube amp, i would definitely try something smaller than the vibrolux, to...