For best performance, keep friction on the lines from the wheel clutch
to the oar to a minimum.
The fewer changes in direction, the better.
On our Lord Nelson
35, the wheel clutch
lines went straight down to a couple of turning blocks at the base of the pedestal
, then back through a watertight tube exiting the hull
at the lower end of the Monitor legs.
It took a lot of measuring and eyeballing to get the tube just right before drilling out the hull
, but it worked wonderfully.
I had an extra block welded there to allow one of the lines to cross to the other side.
We never had to step over lines, or disconnect anything when the vane was not in use, and the vane worked down to 4 knots of boat speed through the water