The only slight problem I had was I had to fit washers between the frame and the adaptor to push the whole thing a couple of mm inboard to get the caliper aligned to the disk. This was only on the rear one.
I started off with 4mm washers but finally settled on 2mm.
If you want to do a bit of fettling, Hope Tech do shimming washers- you can get 0.25mm,0.50mm,0.80mm and 1.6mm. They cost a couple of quid for a pack of ten.
Over the years I've found them an invaluable addition to the toolbox.
eg
Brake Spare
www.biketart.com
If you are stuck cutting twisted cable and dont have a specific twisted cable cutter, you can bodge through using some electrical tape, a pair of standard run of the mil pliers, and a hammer.
Wrap the area on the cable you want to cut with the electrical tape, and dont skimp you'll need to wrap it around multiple times(A dozen anyway) and very tightly too.
Place the wrapped bit of cable in the cutting bit of the pliers and hit the handle hard with the hammer for a sharp sudden cut.
The very tightly wound electrical tape prevents the multiple strands from unraveling so you end up with a sharp clean cut.
You can get the electrical tape off same way you remove a ferrule, just pull it off using a thumbnail
It doesnt matter if the cutting part of your pliers is as blunt as blunt, it will leave a clean cut edge.