I mount mine on swivelling bracket on top of spin pole , as I have no jib my rotation spanner points out the front of the boat , I connect the swivelling bracket to the rotation spanner with two crossed lines , when I tack the boat and mast rotates it also rotates my velocitek to face new tack .
I origionally firmly fixed it to the pole orientated across the boat , but couldn't see the screen when beating and far forward on hull , moving the bracket further forward made it catch up in spin halyard/tack line , current system is dogs bollocks and worked on first attempt !!! all I need now is a carbon MK 11