i'm using a cheap fletching jig. I made my own 55 / 125 ring for it:
The vanes are Bohning Impulse Vanes 4 ".
Here are some pictures of an nocked arrow, there is space between the fletching and the cables, its hard to see on the pictures, my camera is not small enough to get so close:
I could get an 1/16" allen key under my fletching and an 7/64" under the stock arrows: