Quicktime record sounds feasible for standalone ‘whiteboard’ style illustrating, thanks – will try.
I’ve only played a little with Motion (for tweaking FCPX effects occasionally) so this sounds like quite a learning curve, but I’ll have a look around for freehand mask tuts and see if i get anywhere – really surprised if no-one’s turned that capability into a ready-made plugin though.
If I wasn’t clear about what I’m trying to do, it’s because I see the capability as having several uses, but here’s couple of for instance examples:
1 I’m creating a series of punchier short films based on some great ideas badly presented in a rather boring lecture, and i want to quickly create some bespoke diagrams, that i’d find very easy to quickly draw, and somewhat slower to create graphically,
2 I’m creating a title sequence, with a handwritten caption appearing in real hand-writing time on screen (my own hand-writing, not a font).