thanks all, and thanks udenjoe for the links/info, i was hoping to keep it in europe, uk ideally, for the pricing - i saw the bespoke knobs from another thread today and found the elektron ones earlier too - although there’s too many of them anyway, they’d be of interest if they came with 2 of the dotted ‘Volume’ caps (aot 1), then i’d swap out both Levels and both Volumes from my A4 and OT so that only the Encoders on each were grey - i definitely want to keep it to the same product/dimensions - black would do the required trick perfectly !