Analog GURUs out there....what cartridge do I need


Need some advise on cartridges.
What should I get? Budget would be based on the used market and maximum would be ~ $750. MM or MC?
I love resolution and GAIN!!!!! I have a good system backing up this Analog front end. Thanks

Details:
Table:GYRO Spider edition
Arm: SME310
Phono Preamp: Allnic H-1200
Frequency (R.I.A.A) : 20Hz - 20KHz(±0.3db)
Voltage Gain : +36db (1 KHz) MM
+64db (1 KHz) MC

Input Impedance : MC upto 52Ω
MM 47kΩ

Maximum Input Voltage (MM, non-clipping) :
20Hz / 30mV
100Hz / 60mV
1KHz / 300mV
10KHz / 500mV

Appreciate all inputs and please stay within the topic, I need some answers to be honest. Thank you kindly.
rapogee
Hard to beat the Sumiko Blackbird or less expensive BPS. I have used Sumiko, but close in quality is the Audio Technica AT150MLX, a sleeper of a cartridge, and can be found for 250.00 new...a steal, list 500.00. sounds like a good MC, way better than a Shure.
If you love resolution, Grado won't give it to you. They are musical, but resolving, they are not.
Well I have a Grado Black very entry level and calibrated professionally and with that preamp just as a test run for my sytem, not enough gain so.....running through my Ayre.

How do you know which cartridge to go with based on the specs...like to match so that you have proper gain?