@xs1137 Nanrdic is using LOMC cartridges only, but believe me when he bought those NOS Signet they were mentioned so often in MM thread here on audiogon by so many different users, you can simply search the audiogon forum and you will find all the information. Some people will tell you that Signet top models are the best MM cartridges ever made, I never tried the best Signet, but I love the best Audio-Technica from the same era (but they are over $2k NOS). If your budget is $300 I bet you can choose one of those inexpensive models Nandric has.
You can trust all those made by AT:
-Signet
-Precept
Use any of these key words and search audiogon forum, some people are crazy about those cartridges.