A few questions:
1. When toning oil-primed linen canvas, should you use only use oil paint and not acrylic?
2. When toning acrylic gessoed cotton canvas, should you only use acrylic paint?
3. If we are always painting on primed (oil or acrylic) surfaces that are also toned (oil or acrylic), does linen versus cotton really make much of a difference? You're actually painting somewhat on top of the priming and toning, right, so isn't priming/toning paint type just as importance a distinction between linen and cotton?
3. I got a bad batch of paint - too thick, hard to even get out of tube. Geneva is kindly sending out replacements but in the meantime I tried to add linseed oil to improve flow, which seemed to help at first but ultimately the paint just ended up a sticky mess and I put it away in a drawer. Any way to salvage it? Oil of cloves, maybe?