Screamin Demon is definitely a great one for metal tone but lower output. I recently got a PATB-3 Parallel Axis Blues Saraceno and i have heard that it is very similar in terms of lower output but great metal tones.
The Custom Custom may also get you in the ballpark but has some flub due to the A2 magnet. I can get you that classic Van Halen 1984 tone perfectly however. I bet a Full Shred with an A2 would be a pretty interesting lower output match as well.