Quark 123 Tactical - reverse clip?

[ericvw]

It looks like the Quark 123 Tactical's clip is the reverse of the other Quark tactical line. It appears from the photos on 4Sevens that when "clipped", the bulb faces up. If you have personal experience, does it seem to make any difference vs a clip that forces the bulb down instead? I've never seen a configuration like this before.