Oh, another thing, I saw Cramulus do in his Diabetics rant, at least I think he did it like that. Just record a much longer video than you actually publish. Redo bits of your speech a few times if you don't like it, or just wanna try out different ways of expressing it. Record everything, then cut out the duplicate bits and stuff you don't like. Make sure you have a second or so pause when starting another take, so you can use this "empty" video space to control the pacing a littlebit, if you cut it properly, the cuts won't seem unnatural. Maybe move to a different pose to signify there's been a cut, so you don't see just your mouth shift suddenly.
