I am unfamiliar with your turntable, but it appears that you like it. I am familiar with the Pro-Ject you mentioned. I had Xpression II with the speed box. Xpression has a good arm, so does Rega. It was okay to begin with but I was never satisfied with it and upgraded soon enough to Nottingham Spacedeck/Spacearm used, that cost me $1400. So I would guess if you want to spend $1500 on your upgrade than perhaps it would make sense, but under $1000 probably not. Most likely upgrading your cartridge would be the most logical. What do you use now, cartridge and phono stage?