As ex BA ,now flybe I have experienced lots of incap pilot training. The best is when you can do on board, with a 'heavy' pilot that the crew have to physically manhandle about. We all found this very helpful. some tips include already having crotch strap fastened to save embarrassment, especially if pilot utilised is female. Tell it in the classroom simply, then demonstrate and practise on board or in realistic mock up. BA's drill routines are great. Cabin crew start reading at request of pilot flying aircraft; hand up palm out is a stop command ( pilot called on rt for example), thumbs up to proceed. crew should revert back to start of section being read out if interrupted at all. works well with us. Good Luck!