Thanks for the link. Some match mine, others not tried. Others I use:
RLM 70: Straight XF-61
RLM 76: 2:XF23 + 1:XF19 + 2:XF2
RLM79: XF59:7 + XF64:2 + XF7:1 (I tried the suggested ratio and found it too dark. Even this mix could be lighter)
Need to go back to look at my notes for others. I tend to play with the mixes as I do them anyway, applying a thin base colour over preshaded details then applying lighter and darker versions of the same. So, mix ratios for me are a bit "fluid".