Totally agree with israelkk on this one.
I did some similar research, which showed the effect of a pin in a hole.. see attached pictures.
I am not completely sure what you mean by rigid pin and a contact set...
I would advise on doing some analysis with a solid plate/pin...
I played around with your models a bit.. this is what I got..
Got the bumps out of the last model,
The first model you posted, I couldn't get it to work properly.. bumps are diminished though, but the last sweep(7) doesn't seem to...
@ TheTick... this often leads to Mesh-problems in the end... in my opinion it's best to make a new model to edit for your FEA or work with good contact-sets in your copied assembly
I needed to order a new workstation @ work..
My first choiche was to go for a Dell T3500, with a One Intel® Xeon® W3530 , 6gigs of ram, FX1800..
But our reseller advised me a T1500, with a One Intel® Core™ I7-880, 8 gigs and a Quadro 600, because of the rendering/FEA work we do, these...