AdamMH I'm not sure the comparison holds up here, strictly because we're talking about a component company to start with an not an OEM.
And what do you consider Alpha....component or OEM? Maybe you considered them OEM.....before this thread. Now what are they in your mind?
An OEM head will look different than a 'component' head, even if they are from the same open mold & foundry. It's QC....+$$. Finish....+$$. Specs....+$$ Material used....+$$. Reasons why, sometimes, people don't notice they are the same without close scrutiny.
And, they can (most times will) play a lot differently.