A few days ago I bought a second hand Ion iPTUSB, which is the same as the Numark PT01 USB. Only a different colour. I've scanned the whole topic, nice that you're all modding this little thing. I'm not a DJ, just want to listen some music on a battery powered device. So the accu mods are handy, but all these faders, I dont need them (sorry). I'm specially interested in the tonearm. It would be nice to mod that thing, allthough I have no 3D printer. So maybee glue some coins on the contraweight to bring back the needle pressure back from the currently 6 grams to let's say 3? The cantilever of my stock needle is completely made of plastic, so I've ordered a very cheap cartridge/needle on AliExpress, but with a metal cantilever. I think this is the same cartridge as the stock one.