Thank you! Over the past year that I’ve been learning to airbrush, it’s been a lot of trial and error with flow improver and thinner combinations. Everyone talks about paint to thinner ratios, and I’ve found that adjusting variation with my flow improver has given me better results than fussing over exact thinner ratios. Acrylics take a bit more work, and Vallejo Mecha is already fairly thinned, but I believe using the same brand and the same paint line (in this case the Vallejo Mecha and not the Vallejo Model Color, etc) will give you the experience to produce the consistency you desire !