Help me PLEASE. Every time I pedal this thing something creaks, only when im seated though. It stops if I stand up and pedal. Its not the seat, and its not the main pivot bearings either. Once every rotation it'll happen, th eodd time it'll creak twice. The BB seems in good condition.

Thoughts?

Have you checked your saddle or saddle fixtures? Its a common source of creaks.

Maybe you shock bushings?

Not sure about the Supreme Mini, but when this happens on my Meta 55 it is usually fixed by taking the rear dropouts apart and cleaning every surface. Once stuck back together again tight the creaking disappears.

Definitely not the seat, im 100% on that. Will give the dropouts a go and see what happens, shock bushings will be checked also. Sanity is slowly disappearing!