OK, thankyou. Good point.
I just got a email back from a friend in the USA and we were discussing the blue dmd, and he is saying Metallica will have a Blue DMD on some models. Perhaps thats why they are selling the Blue DMD now.....
I will still try a blue lense over the std red dmd before i spend $399 plus postage.....I know someone did a green lense over Congo and it looked excellent....