I don't have a light meter either, so unless there is an obvious defect of some kind, I'll probably not know whether or not the white mesh cable version is equal in quality to the black.
Btw, which lamp/fan mode do Sharp 30k users here prefer: “Eco+Quiet” [On] or [OFF]?
I've tried it both ways, and for 3D, I think the picture looks more pleasing with it in the [OFF] mode using 'Stage" setting. I project from about 16' away (shelf mounted) on to a Wilsonart Designer White 123" DIY screen. I believe that it is around a 1.25 gain.