It's true, running your gain super high and then wondering why you're not cutting through is a problem that a lot of rock an metal guitarists have. I've had a two channel recto, a three channel recto, and now a roadster (as well as a slew of other boogies, marshalls, engl etc) and I've found that using the right tubes and running your gain fairly low is really the key. I do what a lot of metal guitarists do, I run my gain pretty low on the amp, and then boost the front of the head with an overdrive pedal. It gives me the focused clarity and projection that I need, as well as giving me what sounds like a pretty over the top metal tone. I'm running Tung-Sol EL34b's in the power section and a mix of Tung-Sol and Groove Tube preamp tubes. I'm bypassing the loop, running it at 100 watts, and have it set to recto tracking. My channel 4 settings are
Modern
Volume 11 o'clock
Bass 12 o'clock
Mids between 11 and 12 o'clock
Treble 2 o'clock
Presence 1 o'clock
Gain 12 o'clock
Then I have my Maxon OD808 with the gain almost all of the way down, and the level almost all of the way up. The tone knob is set at noon. I'm running dual EMG 85's in my Ibanez RGA's and it sounds awesome. Lots of clarity, lots of muscle, lots of low end, bust most importantly, lots of warmth. You CAN play super heavy stuff and have your guitar not sound like a buzzsaw.
Anyway, that's what works for me.