[Poodlebrain]

Are each of these vehicles self-laying? If so, they will probably be employed in shoot-and-scoot mode, and the limited traverse should not be a serious limitation.

[Darksheare]

Not sure.
The article was somewhat vague on that, but since the Paladin self-lay capability, I'm assuming (very dangerous to do) that it does have self-lay capability.
The limited traverse becomes a problem when you need to 'bump trails' to get on the azimuth of fire.
Basically with the light towed system I was on, we'd grab the handspike and lug the trails in the direction desired so that we could get on the correct azimuth.
With a limited traverse, if the azimuth of fire is outside your traverse, you need to move the vehicle somewhat to get on the azimuth.
With the Paladin, that's no longer a problem since the Paladin can turn the turret in all directions.
The Stryker SP would have to physically move the entire vehicle to accomplish the same thing.
And THAT becomes a pain.
(I remember listening to the guys in an M-109A3 complain about having to turn the vehicle slightly to be able to fire on the data given. And then they had to re-lay the thing afterwards with the safety circle and aiming circle because their driver dug a huge pit with the treads. I felt sorry for those guys.)