So I've just hit 52 and I'm trying to get comfortable with GB. It plays more smoothly than I imagined it would, but one thing I'm having trouble with is weaving oGCDs. It seems that if you're quick, you can get one oGCD in after a cast-time Split Shot/Hot Shot/Lead Shot, but thus far I'm not able to do that every shot. Is it better to weave the oGCDs individually after casts (weaving as able during proc'd shots as well, of course)?

The opener in the OP seems to suggest double-buffing after every shot as though GB isn't up, so I'm not entirely sure which is proper.