Just to add to the above....
In my opinion, if your out in crazy gusty Nukeing crap - then a "Below the bar depower is better so you have a huge amount to play with.
Normally when the above bar depower is no longer effective, you can get more range from the other....
It may not be in the perfect flying position but still gives you a reasonable amount of control to keep having fun

Having said that, I would not bother going out if my bar at full depower, was full powered on the front lines, common sense

should kick in before that point ....Hopefully