I have had a hard time spotting with Marshall´s spotting liquid and found Peerless more easy to use. But I did see someone demonstrating Marshall`s and he let the liquid dry out on the palette and then pick it up with a wet brush. So much easier then when I tried to do it with the liquid wet. Maybe everyone already know this but for me it was a aha moment. Must say I did a very good spotting today and it was almost joyful, I normally don’t like the spotting part of the process:) Now I just have to find a good work light.