wrote:

Since my main use will be on the C172, how much of any advantage will
the 20XL be over the QFRs? What would be the main difference btw the
20XLs, and anyway to tell if they are of the newer type?

The main thing I didn't like about the XL's was that god awful huge ear
cup. The headband is alwfully thick too. You will be constantly
banging your earcups into the aircraft.



I'm just wondering if the 20XL are worth the $$ over the QFRs?

No. And the QFr's work great with my sunglasses.



Are gel
seals available for the QFRs?

Yes, I have them.