Bonus Rega 301 arm on Thorens TD 2030

So I picked up one of the Thorens Acrylic Series turntables on closeout from Audio Advisor, and am digging it quite a bit. Everything that I read said that it came with a Rega 300 arm, so in looking at it and wondering if a part was missing or something (since it didn't look like the pictured arm in the manual). So I gave it a look, and it's an RB 301. Must have been a running change by Thorens.

At any rate, I'm running it with a Grado Reference Sonata and Grado PH-1 phono stage. Anything I should know about this arm? I'm not a tweak kinda guy, but if there is commonly known stuff that I should be doing, I figure someone here would know.

Thanks.