meffert's 4x4

Hey all! I’m looking to repurchase some old cubes. I used to have some original tiled 4x4, 5x5 and megaminx from Mefferts. Sadly i took off the tiles and used them with stickers when they were my main speedcubes. But now I would love have them again with tiles to display them. And I can’t find...

I just got a Meffert's 4x4 a couple of days ago, and in that short period of time it has started feeling very loose. I haven't had any pops, but I overturn constantly. The whole cube feels kind of rattly which is somethign I wasn't expecting based on reviews I've read of it. Is this normal at...