About that washer under the pivot ball for tranny Options

[Amphicar770]

Hi All,

Trying to clarify what is either my understanding or my misunderstanding.

It is suggested to install a washer under the pivot ball when flywheel has been refaced.

I thought I saw somewhere that the washer can alternatively be placed under the plastic cup for the arm. That of course causes the cup to protrude a bit and not sit flush.

Is this correct or, since I already put it there, do I need to order a new cup before I mate tranny back to engine.

Also, while I understand the washer helps ensure clutch fully disengages, what is the downside to installing the washer if it is not actually needed?

Thanks.

Mike