Have you flown "on top"?

I'm just curious how many of you have flown on top? Either way, why or why
not?

I have. but didn't like doing it. It was to avoid flying too low among the
blue ridge mountains when there were low layers hanging in the valleys. (I
had a Garmin 396 with XMWx so from the sat/radar view I knew what to expect
ahead).

I'm not sure why it bugs me so much, I'm dual rated and in a plane I feel
totally fine on top, but it bothered the snot out of me to do it in the
helicopter.

Bart