Once adjusted, you're blades should be in perfect track every time you fly. If they don't stay, you've got other problems.
If you have so much slop in the system that it 'woofs', fix the problem, don't flip the grips.
If you do, you have to flip the washout base and everything up. The levers and base aren't symmetrical so it won't work as designed.

If the head is 'true' and slop free, you won't have any problems.

Kirk