Ian thanks for the reply. Not sure what you're trying to say though.
Let's clarify some terms, maybe I'm using them incorrectly.
I have a fiberglass ketch with a keel stepped main and deck stepped mizzen.
The mast partner in the case of my fiberglass boat is just the whole in the deck. Maybe we should just call it the hole in the deck, but everyone calls it the partner. It is not adjustable. The maststep is adjustable it's aluminum sitting on a UHMW block and has four lag bolts into the keel.
For those playing along at home here's traditional wooden mast partner:
http://www.aandc.org/research/mast_partners.html
I'm talking about the fore/aft placement and twist of the mast as I can see it where it goes through the mast partner (AKA the whole in the deck). After the tensioning of the rig and measurement to make sure the masthead was centered the mast is pulled to one side in the partner, a tad twisted and is definitely pulled very far forward in the partner; 1/8" from touching.
I'm just trying to determine if I should be worried about the mast placement not being centered in the partner (aka hole in the deck) or is it not a big deal.
I also assume that if it does need adjusting it's not through the wires, but through getting the maststep into the right place.
Thanks,
-p