Any manufactured item has tolerances. The only way to make sure your action fits your stock is to bed it. Doesn't make any difference if the stock is wood, fiberglass, aluminum or steel.
Even factory glass bedded stocks are bedded to a dummy action, not your action. If there is any question that the fit may be affecting accuracy, I bed them all.

Last edited by Blacktailer; 04/25/20.

I am continually astounded at how quickly people make up their minds on little evidence or none at all.
Jack O'Connor