Dr. Mike Trubetskov demonstrates an SSL-style G Bus compression mix-bus trick for modern metal instrumental buses using seemingly extreme settings (4:1 ratio, fastest attack, fastest release) made effective by engaging a sidechain high-pass filter around 250–300 Hz (fully mixed in) to create a more cohesive, aggressive, crunchy sound. He compares multiple plugin options—Universal Audio SSL G Bus, ‪@oraclesound‬ Boontarizer, and the free Analog Obsession Buster SE—showing how different versions respond and how you may need to adjust attack between the fastest and second-fastest settings to avoid smearing the snare transient (e.g., moving from 0.1 to 0.3). He highlights Boontarizer’s upper-mid harmonic sheen and notes the overall goal: more oomph, push, and modern snap on the bus.