Thanks for the nice feedbacks! :) To get the most of these shaders, I highly recommend to use 1 light only, otherwise you won't get a nice shadow (and that explains why you can't see the differences between the sets, I guess). These materials carry a native backlighting fx, so using 1 light really gives very nice results. Plus this saves even more ressources and the render comes faster. :) A light version of the pack? Well, at first I didn't want to make so many materials (more than 1400). Initially it was 50 in mind. But I felt the need to create these color variations for beginner users who might have been unable to customize their colors. I wanted it to be as much user friendly as possible... So! A light version? Hum, no. Why? Essentially because the real work involved was not to create the color variations, no. That was the easy part. It took me almost 9 month to develop the structure of the shader. That's why the price is "high" compared to the classic products. Though it's not an exception. For example Sanctum-Art sells a stunning pack for 70$ at CP. It's a high price too but for the quality of his work, the profusion of item, all these details in the meshes, believe me: it's given at this price! Get it!!! :) About my shaders, consider that they offer you a service that 3DSMax users have to pay at least 10 times more if they want to buy the ILLUSTRATE plugin for 3DS... ;)