I test the new gh5 all-I codec in Vegas 15 and work more smoth than the 150Mbit/s for LongGOP IPB.

The new firmware V.2.0 leaves at the end of September.

I try the footage here:

http://www.eoshd.com/2017/08/panasonic-gh5-review-and-exclusive-first-look-at-version-2-0-firmware/

:)