I took off my Hijacker Autoslide and put on a B&W when I got the Landmark. Creeper and Retired are spot-on about the B&W: Silent! No chucking, positively latched, 200 lb lighter than the Autoslide. If you think you will need to go 90°, get the slider. But if you plan your parking right and take your time, there will hardly be a time you need to push the kingpin back. Heartland's clever patent really works with my 2007 GMC Crew Cab with 6' box. The scooped-out clearance in the corner of the camper leaves a secure gap of daylight to the cab.
Retired, I am curious about your statement on not able to use a lube plate. I've been using one with no problem, but this past weekend, I was a bit higher to the hitch plate than usual and it pushed the truck down more than normal, then stopped before latching. The lube plate had caught on the B&W and was pried up and back. I managed to press it flat and hitched on the next try, but was a bit puzzled. Is this a common occurrence?