Is it worth upgrading my tonearm?

Hi, Gang,

I have a recently adjusted/upgraded SOTA Sapphire turntable, fitted the used Linn Basik LVX tonearm that I purchased it with many years ago, and an Ortofon 2M Blue cartridge. Somebody has the Rega mounting insert for a SOTA table for sale online, and I was wondering whether putting something like a Rega RB 30x on the SOTA would be a significant upgrade.

Thanks in advance!