Nagaoka MP-150 vs MP-200


I recently upgraded my turntable which came with a Naga MP-150.  I like the 150, but can't help wondering how much difference a 200 stylus would make.  For anyone with experience with both, I welcome your thoughts. (Previously I had a Signet TK5e for many years, which I was happy with. Anyone happen to know what current cartridge would be closest sounding to that?)
128x128xs1137
@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.
Why? There are much better cartridges....don't believe the Korean guy on youtube....