>and that sacrificing the reliability of metal film would
>not be worthwhile. I'm also dubious about the merits of
>allowing CF as they would almost certainly be Chinese

If you are going to introduce significant cost differences by using metal
film, then you may find counterfeit items appearing using CF ones instead in
a rip off product.

My response to your requirement for using MF is do you really need the
tolerance accuracy? MF is normally supplied to 2% or tighter, CF is
typically 5%, but not having dealt with Chinese production, I don't know if
these are the tolerances they would supply.

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