Calling All Analog Gurus! What to do about my vintage Signet TK7LCa?



I just took a chance on buying a Signet TK7LCa cartridge on eBay to try with my new Allnic H1201 phono stage. I got it yesterday, checked the stylus (looks straight), and mounted it on my Well Tempered Amadeus. Unfortunately, the sound is dull, dull, dull regardless of what settings I use with the Allnic. I cleaned the stylus, so that is not the issue.

Am I correct in assuming that the stylus is just worn out and will need to be replaced? Are there other things I should try? What are my best options? What would you do?

Thanks in advance for any and all helpful tips. I continue to have high hopes for this cartridge despite this inauspicious debut.
128x128waltersalas
One more thing, If you bought the Signet on 24th it has a 30 day return. I would probably return it, if I did not like it.

Acman3, thanks for some useful feedback. I am going to give it another cleaning tomorrow, including the old Magic Eraser approach, and will also fiddle with the VTA. I have the VTF at about 1.5g--does that sound about right to you?

I didn't pay very much for the cartridge, so if I can send it to Soundsmith or the Needle Clinic for a more thorough cleaning or retipping, I would still consider it a good investment. The best way I can think of to describe the sound is "sanded off." I did not expect the level of detail I got with my previous Dynavector, but I cannot believe that the Signet is supposed to be this muffled.

In any case, I appreciate your tips and will give your suggestions a try.