I have had both the Pullrite Superglide and I know have the B&W companion. For ease of hooking up and unhooking the B&W is easier. For the Pullrite you have to be almost perfectly straight.
The B&W companion slider gives you a nice clean bed when hitch is out.
I have a short box as well. I thought about not going with the slider when I went to the B&W but there may come a time when I need it. Especially if I decide to upgrade the 5th wheel. Yes the sliders a tad bit more money but the first time you damage your cab because you or your spotter was not watching it is well worth it.
Just my 2 cents.
