Dutch, don't know if this is how you do it, but this works for me.
Been using a Curt q20 for two years now with no problems at all.
I just let the nose down till the plate above the pin is sitting on
the back edge of the hitch "shoe" so that when I back up the weight of
5er is being put on the hitch. No problem with the hitch closing.
I do on occasion have to move forward a 1/4' or so till it click's in.
Hope this helps you and in no way am I saying you are doing anything
wrong, only what has worked for me. No offence intended.
John.
