Trying to decide which way to go on fifth wheel hitch

I read the wedge can loosen up. I see someone has said you have to have the correct wedge so maybe that was the problem. The other problem of the pivot point being behind the axle causing sway was in an advertisement for a slider hitch so not sure what to believe on that. Haven’t had a chance to talk to any real people yet about it I definitely want the extra clearance all the time so that if I need to make a tight turn) I don’t forget to look if the trailer is going to hit the truck.