Just thinking if the converter is not bottomed out in the pump then when the snout bottoms in the crank all you are doing is bending the flex plate. Should not push the crank forward.
Yes it will the flex plate will not be able to flex forward at all and it will keep constant pressure on the thrust bearing. I know I have bought two crank because of this and it the only thing that I have changed. I had the converter pilot snout cut down .100 to give the converter to be able to flex forward. the reason .100 is because it was liking .040 before the pads touch the flex plate and to give me .060 of flex forward if it needs to.
Hope this makes sense to you guys.