I’ve already got a fast rf-co2 laser source. I’m thinking about getting a galvo head for it. The lenses aren’t cheap but the galvo head is. I do see different galvo controllers on AliExpress. Are they all compatible with LB? Which one is best? We’d need one with a 4th axis output too The galvo controllers are the same for fiber and CO2, right? I don’t see any reason they’d be different.