Still, I stand by what I've written. IMO P3 reds are exceptionally good. Here's a quick example. The loincloth on LCB was painted using only reds from P3. I used Sanguine Base, Skorne Red, Khador Red Base and Ember Orange. Only the first one had to be applied in two thin layers as I used black basecoat.
Essentially you just need to shake the pot very well before using it and them apply it in 2-3 (depending on the color of basecoat) layers. I've experimented with other reds and the ones from P3 work the best for me. Thin paints, great for smooth highlights. I'm actually considering buying more colors