For sure, that's good advice. I have had as many as three Revs (Standard, Mid-Vent & Full-Vent), all set up and staked out, side by side. Still, you will have very discouraging days, like today, simply because the winds tend to swirl inland, especially when it's light. They are just NOT locked in, and steady, like at the coast, or in a tremendously large field.
You'll get that perfect day, sooner or later, and it'll all be worth it.
Remember, it's really important, that the area behind you, be clear of obstructions, a long ways back. There's some kind of "rule of thumb", that says if there is a 100' tall obstruction, behind you, then you need to be at least 7 times that height (700'), out in front of that obstruction, in order to get fairly clean air. Again, that's some kind of "rule of thumb", give or take........ Clean air is nice !