Great question and a great read. I think and agree that Roadsters and standard 3 channel Rectos are indeed different, but not THAT different. They are aiming (essentially) to do the same types of things tone wise. I would say two amps that are totally different are something like a JCM 900 and a Recto...both gainey amps but just no where near the same. So my opinion on the matter is that you should be able to do the same types of things gain-wise and tone-wise between a 3 Channel Recto and a Roadster. The differences between them response wise and tone or gain wise will really not be vast.
A Roadster wil get plenty mean sounding, or tight, or fluid, or whatever....just as much as a 2010 Recto will. Don't base your decisions on a semi-sound proofed GC room. I promise that if you simply look at the environment your Roadster is in and adjust the room accordingly, you'll find the Roadster, in the long run, has a lot more options that you will warm up to in the months (or even for some of us) years ahead. It's really a swiss army knife. I found myself even using settings on my guitar that I normally ignore with other amps, often on the Roadster, because if delivered them so well. The channel I thought I would hate (brit mode on 2) I used all the time...and even got a pricey hand made pedal to simulate it after selling my Roadster (bad mistake) because it just introduced me to new sounds rather then me trying to make it do things I wanted all the time. I know we buy amps to get "our tone" but some amps inspire us to to do different things then we normally do on our instruments. I really believe a Roadster is that amp for a lot of people.
Go to a 2010 Recto if you simply want less "stuff" in your amp getting in the way - NOT because a Roadster's cajones aren't as big as a 2010 Recto. I would get a Roadster as my next amp, but I don't need those things a Roadster offers...I have a Tremoverb for those things. I'm not getting a 2010 Recto because they are more "brootalz" I don't think anyone really believes that at all. They are both "brootal" it's just that one amp spells it "brootal" and the other spells is "bruutal"
Just like you say "Meh-sah" and I say "May-sah"
:lol:
Good luck bro.