I fitted a Helix clutch when my AP one failed about 18 months ago. No complaints about performance and no issues. That said I was surprised to see the friction plate was LUK and the cover had the manufacturers name and part numbers ground off, which got me wondering if I'd bought a standard clutch with an expensive Helix sticker. The AP clutches use Valeo friction material (I think) but the cover plate is stamped as AP. No idea if AP actually bespoke the covers or just stamp a pattern one though. PS. Good to see Mankee still about