I don't want to create a lenghty thread out of this, but the question is for luthiers. I've been studying Rubio's methods for getting the glaze finishes, and associated info, and then came onto the lengthy process he described to get the madder lake. A madder lake (unlike a madder wife, or kids, such) involves isolating the alizarin dye from the madder plant, then creating a lake. So my question is: Why not simply use the histological stain, purified alizarin, available in histology stain catalogues (and was always part of my histo stain cabinet).It would seem to be a simple way to avoid this lengthy operation. Unless, of course, he (Rubio) was mainly emulating what the old timers had to go through to get it. Are there any luthiers who can comment about it? I'd like to try the process, but in contemporary context. (Lazy - I'd like to skip extracting the alizarin myself, if possible).