Has anyone replaced the mc-320 astaic cartridge with one of those XTLN-MC320's? Here's the thing I own about a dozen d104's. There wired for different rigs and I always get excellent audio reports on the one's I'm currently using. Although the cartridgs aren't broken as I'm sure I'd get poor reports if thay were. Thay are all atlest 30 years old and I'm wondering if anyone replaced there Mc-320 with the XLTN -MC-320 not because the one that was in there d104 had an issue but because it was just old. If so have you gotten better reports? I've added the audio sample supplied by the maker and seller of the new replacement crystals. What do you think?