We LOVE the 6 speed... Our previous Redhawk had a 5 speed, and this 2016 has a six speed.
It's much quieter.
It doesn't down shift as much in the hills and mountains, and the compression braking works better.
We went from 9.0 MPG in the old unit, to 10.1 in this new unit.
The comparison is for trips from West Virginia to Florida, using the same route. The "sweet spot" speed is about 60 MPH. We were able to drive most of the trip with the cruise control on, without it shifting down into the "screaming engine noise" range.
The difference is so big, that it's almost un-believeable.
Have fun and be safe!
2016 Redhawk 26XD
Me, Dear Wife,
2 Bluetick Hounds
1 Newfoundland / Black Lab Mix
1 Cairn Terrier