For the avoidance of doubt, I wouldn't even begin to advertise the workshop as technique-related (I can't bow for example, I just do pizz and there are tons better DB players than me, including proper pros like Jakenewmanbass, Roger/bassace and Mr Bassman/Keith - by comparison I am Sid Vicious)
I was thinking about just talking people through the practicalities of gear choice, how to amplify, how to solve onstage problems (feedback etc). Basically what you need to start gigging DB as an electric bass player