I had it all man, the RG100ES heads, the rackmount rg100ht, the furman PQ3 and PQ4, the vintage MXR six band, A Dean dimeslime ML. I was obsessed with that tone for a long time, and still am to an extent, I just need to get myself another old Randall head. I sold them all like an idiot... and I sold the ML... just another phase that got me in the tube direction, but i truly miss that solid state crunch those Randall have when boosted. Palm mutes sound more massive than anything on those amps, they just bounce right out.
Even though, those amps have a simple layout, they ain't as easy to dial in as you'd think. At band volumes you gotta keep the treble and mids at no more than say 4.5 out of 10, and if you need more top end the presence works wonders. Using a boost like a od808 or sd-1 or a mxr 6 band like Dime is a must. Using the presence control as a treble knob works great at band volumes. The higher you turn the master, the more the mids dominate the sound so If your master is at say 4 (loud!) then drop the mids (3 ish) way down, treble too (4) and crank up the presence to take the blanket off... it will sound more balanced. Just a little thing I learned with those amps. Also, very picky with cabs, the rectifier cabs with V30's work best, 4 ohms, they love to be run at 4 ohms, through a full stack prefferably. The treble knob pull out thing robs the amp of dynamics and punch, don't use it. These are some tone tips for you, if you play in a band.