Where to buy a Superglide?
I added the side to side lockout on my Reese 16K. My thinking was this would give me the best of both worlds. As far as I know, the primary benefit of side to side movement is easing hookup if the trailer is not level side to side. I haven't decided yet whether it is better to use the lock while in movement or not, but it does help when removing, re-installing and storing the hitch.
Be careful of the really extended pin boxes. Mine runs into the side rail of the truck before any other part of the trailer is in danger.
If I needed a slider, I'd seriously consider the Pullrite irregardless of the extra cost, due to its automatic operation.