I giggle every time i see people complain "managing ogcd skills"
We have 3.
Count them, THREE. One has a 1 minute cooldown, the other 2 are 15 seconds. (Bloodletter shares recast with RoD, so not 2 separate skills)

Bloodletter has been macro'd into Heavy Shot since level 15, Empy Arrow slots neatly between any cast and RoF can be thrown down whenever i want.

If you cannot manage to fit 3 oGCDs around a 1.5 second cast with a 2.5 second recast, the problem certainly isn't Minuet.