VPI turntables

I currently have an Aries Scout with a Soundsmith Carmen 2 cartridge, I'm wondering if I'd hear any improvement going to a Prime with 3D arm or a Super Scout 21 with 10.5 arm or would more improvement be had by changing cartridges. I like the sound now but like most of us I'm always seeking improvement..

I'm using an Ayre phono pre into Pass XP10.

Thanks John