Crowbar changed their approach somewhat, transitioning from the 50's inspired barrel house boogie of the previous album to heavier, more progressive, and R&B sounds for Heavy Duty. But in the process, they lose a lot of what made them unique in the first place. "Trilby" is a promising start, but from then on in Kelly Jay and his crew meander in search of something tangible and not entirely getting it. Ultimately, a spotty follow-up that has its moments.