Thinking to replace my phono

If your arm is Brinkmann 10.5 then effective mass is 12g ? 
Miyajima Kansui compliance is 9cu @ 10Hz and this is a very low compliance for 12g tonearm which is designed for mid compliance cartridges. At least you have to use special heavy mounting screws to add mass, this is all you can do with this tonearm.

I have the same Kansui cartridge and i think you can improve its performance with much heavier tonearm like IKEDA if a tonearm/cartridge resonance matching is important for you. 

We are getting into preference here but I tried both the Kansui cartridge and the Zesto phono and didn’t love either one. I found them both to be very relaxed sounding, too much imho. 

Replace the 4 JJs in your Zesto with Shanghung 12AX7LPS black from Grant Fidelity. Give them 20 hours to burn in. Different league from the bright and fizzy JJs.

Damn Agon upload error deleted long post.

If you don't like black tubes, NOS Telefunken ECC83/12AX7 (smooth plates) will bring refinement with more detail, transparency and air and spaciousness and remove the chromy glare of those 803S JJs.