Looks awesome/powerful. Been using my Kenton MIDI DCB.
Echo what pulse divider and stromcat say regarding the CPU IC removal. I recently upgraded the EPROM on my TR-909 to V4 and it was the same process. I tried to preserve the original but it just wasn’t happening, heating up the pads using my hakko desoldering iron. I had to snip the legs and carefully remove/desolder each leg. Everything worked in the end, it was just a pain. As a result, I can’t bring myself to perform this upgrade at the moment. But I may order to have on hand…..for the future.