Edelbrock head valve spring assembly

I'm changing valve springs on a set of edelbrock aluminum heads that had been assembled with the original steel shim against the head and an aftermarket shim with the grooves on the bottom on top of it. The grooves started wearing into the steel shims and I don't really need the aftermarkets as the spring pressures fall with in specs with out them.
My question is, did the edelbrock heads come assembled with just the steel shim beneath the spring separating the head and spring, or is there something else between the spring and shim?