Iv been using the standard nylon max grip jazz iii for over a year now and im looking to buy some new picks. Iv been looking at the carbon fiber version. Whats the difference? advantages?

It fact it lasts longer (carbon fibre based) is the main advantage. Feels quite similar to me, might have a bit of a smoother release.

The Eric J Jazz iii is my fave, though
ProTone Pedals: Attack Overdrive
Fractal Audio: AxeFX 2
Engl: Fireball 60
Zilla: Fatboy 2x12
Carvin: DC700
Carvin: Vader 7
Schecter: KM-7 MKii
Schecter: Banshee 8 Passive
Jackson: DK2M