After doing the Ash mod on my coils I used a 1 metre length of HT lead for each coil, didn't cut it, just left it in a loop until I comes time to fit it, then I'll leave a little extra on it for trimming purposes later and will route them over the top of the engine and not leave them hanging in the air over the front of the exhausts. I have already bought HT clips so that they are secure over the engine and will not move. It just looks so much tidier that way. Plus my coils face backwards so that also helps.