I know I've seen that before, so I'll say it again, that's very cool!
Does having something in the drum affect the sound? What if you made a mini matrix out of 60/m flexstrip and mounted it closer to the head? My other idea/suggestion would be to change the skins (I think that's what they're called) so that the print is black on white. I'm sure that's a costly proposition though.
Look forward to seeing you Saturday.