That's the problem.
Very few people who spend money on a mod wanna admit that it isn't all it's cracked up to be.
And the more expensive the mod, the less they wanna admit it.
Makes it hard for someone considering those mods to know if he's getting the real story or BS.
Yah, your comments about the G5 are probably crap. Your logic, not mine.
Oh yeah, I'm probably as prone to this as anyone else.
I do like my G5, however I will readily admit that it doesn't do anything my vacuum horizon & GD didn't do.
But several years ago I spent $900 or so buying & installing a set of Micro VG's for my C150/150TD.
I was hot to spend some money on my airplane, and let some glowing VG recommendations sway me,
in spite of a few Cessna pilots that reported little to no improvement with them.
Unfortunately I didn't see much difference in performance with them installed.
Some pro-VG people have said "you didn't fly it right" or similar -- maybe so.
In any event, they didn't do much for me, the way I flew it,
so I don't think I'll ever bother putting them on a stock Cessna wing again.
If someone else raves about them in the same application,
I'll post my experience, but otherwise more power to them.
As far as AOA's, I've never flown behind one, but
I'm leaning toward MTV's point of view.
But if you or anyone else likes them and wants one, more power to you.
Just don't insist that I need one too.