Like the other Corsairs, refrain from excessive use of vertical manuevers; unless you have plenty of E.
I missed this earlier too...
That's about 180 degrees off, IMO.
In other words,
you should be using the vertical as much as possible, especially when you're low on E. As a matter of fact, I'd recommend using the vertical unless you have so much E you can afford to just burn/give it away.
The one thing in the vertical I'd avoid if low on E would be roping. Don't try it, and don't try to follow one up.