Way of Air and Hunter's Eye have 6 seconds duration because 1st second is spend in roll-dodge, and they end up in 5 seconds buff like all other similar buffs in the game i.e 7th legion, Veiled heritance etc
I just checked on PTS - Senche's bite still has only 5 seconds duration, starting from the moment you press roll-dodge button, which means that you only have 4 seconds of buff. This is somewhat underwhelming, especially considering that roll-dodge fatigue starts at roll-dodge end, so it is impossible to keep 100% uptime of Senche's without over-using stamina and Senche's average buff ends up at Hunding's Rage numbers, which don't require any roll-dodge.
@ZOS_BrianWheeler
Plz consider extending Senche's duration to 6 seconds to make small ones brawlers-sentries stick to the role, proposed by new combat approach.