Just to push it that extra 10mhz I want to plug a Diimo 030 into my Mac IIfx but while it does have the same 030 PDS slot as say a IIci I can't find any mention of anyone using one in a IIfx.

Is it "compatible but not mentioned by MicroMac" or is it truly incompatible? I can't really test without buying a CPU for it so if I can save $50 I'll do so.