Westone pins are slightly longer (about a millimeter) but gauge and placement are the same. According to Comply, MEElectronics and UE TF10 have the same size nozzle. (click to embiggen) I just did a quick test with my UE SuperFi 3. I used them with a Westone cable and MEElectroncs small triple-flanged tips. EQ was the same but isolation was better and they were more comfortable.