I don't think audio can really sustain two different cards, and given its history I think it would be better to reinstate the LBA (especially since we have a reigning LBA champ so the first month could be the next audio GC vs Bizzy?).
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EtH I know bugger all about the audio side but I'd definitely be willing to help you with the menial work side of it if you want, like keeping everyone aware of deadlines and calculating records etc.