I’ve got a few ZL’s with an XM-L2, and my SC600w MkIV HI blows them away with its tint. Granted, the XHP35 HI has much less tint shift than domed emitters, so I’m not sure if the SC64w with a regular XHP35 is good. But overall, I haven’t been that impressed by the regular domed XM-L2’s.