How I paint power armour

I was messing around with techniques for painting power armour and I think I've stumbled upon a winner which looks pretty good and takes little time/effort. It's not an unknown technique just one I haven't used before.
First you base the mini in whatever black you use normally. Then apply a complete drybrush of grey, and on top of that a drybrush of white. What you want is a version of your finished mini if it was in greyscale instead of colour. Then using the tamiya clear range of paints I apply colour over the top, and paint anything that would be metallic. Finally the whole thing gets a brown wash, is varnished and based. Here's the result on a space marine I had lying around:

Thanks for stopping by!
WGP

Why aren't there more percentile systems?

A while ago I posted a little something about how I handle mass rolling of 2D6 without resorting to coloured pairs of dice, this was mainly due to my attempts to play Laserburn Imperial Commander. It only just dawned on me today however that you can do the exact same with 2D10 rather than 2D6, and 2D10 can be read no just as a result from 2-20, but as from 1-100. You could have the large skirmish style game (usual 40k levels of figures) based on a percentile dice system. So I suppose the question is then - is results from 1-100 necessary for a game when if you want to go really high you can get your hands on a D20?

D100 can seem a little overkill, but I suppose with that extra granularity you get granularity in your stats and real room to have characters or units improve in a campaign. Just a thought I had, having realised I haven't posted in a long while.

Thanks for stopping by!
WGP