Having seen a few examples online (and it being my favourite card stock), I thought I would use my pencils on some to see how it went.
I was watching someone colour online and noticed after colouring, that they re-stamped their image - what a difference. Luckily, I have a good stamping platform (like a folded book), rather than one on four bouncy legs. By cleaning the stamps insitu, they can be left in place. This allows you to see exactly where you were and can easily overstamp - providing nothing moves.
Herewith a kraft sample card, coloured in - this is how most people colour their cards: