Just put an hour or so's use under the Carbon's tip and it does indeed sound pretty darn good. For example, playing Michael Brecker's first album and the track 'Nothing Personal' there's a repetitive E/F#/G acoustic bass line where the first 2 notes are played on the beat, the third is at a slight syncopation to colour the rhythm. However, the bass doesn't always follow the same rhymic pattern which adds interest. The Carbon picks out the plucked bass's natural decay quite beautifully and has great pitch definition with no unnatural bloom (one of my pet hates tbh) allowing the track to rip along.
Sure, the ProAcs are helping here as they're quite dry at the bottom end but the Carbon is certainly helping here. I'm sure things will get even better once the Jelco's in place. :)

