Nice one, you'll see the subtle change and the lack of white spray is a bonus.
I'm not overly happy with the delicate way the wires are soldered on, one of my lights flickers with slight wiggling of the wires. I've bought some shallow T10 bulb holders (eBay 380351290510) in the hope that these provide a more reliable connection, plus I think using them means they won't protrude so much at the back.