Thanks for the info about the difference between the old en new 136. They seemed different from the pics to me and I can see from your side by side pic that the new one is indeed denser. I like the fact that the old one is not dense actually, because it helps to apply coloured powders lightly all over the face. I have to be careful with bronzer and this brush is perfect for it. I also love it with a powder like Forever Marilyn or the Guerlain meteorites. I get the product on the tip of the brush and not on the side and because the brush is pinched it's easy to apply bronzer just on the contours of the face and not get it on too large parts of the face. With something like the 150 I think you will apply the product heavier and on larger parts so that's the main difference to me. If you like to be able to build up products than the old 136 is perfect. I can't speak about the new one of course. I'm jealous that you find one in the cco for only $44
I wish I could go to a cco and find gems like this brush...