So, having consulted a rigging specialist who suggested my rigging cannot be tuned because the turn buckle bolts are buried and there is no more room to take up slack. Now replacing the rigging will run me $5000 around here, but I'm about to do a passage (which is actually a required, not for leisure) and I don't have yet another $5000 to dump into vessel, which I am considering renaming to "Wallet Eater" or maybe "Billfold Breaker".
Next year, I plan on doing of course another round of maintenance. And by then, I may very well have the amount of money required to fully replace the old and tired rigging, the reasoning being it's too stretched out to re-tune and with the turnbuckle bolts buried into the ends he can tighten them no further. The current rigging is very traditional, and the stuff this guy uses would look like crap on my old boat. He suggested I talk to some guy in port townsend whom specializes in more traditional rigging. I'm sure it will cost the same or more.
So to get me by for this trip and until next year, I have concocted a plan. My turn buckles are the type with two threaded knee-ends, and a double threaded bolt (threads in opposite directions) going into each end. The bolt has a hole in the center so you can stick a screw driver in it and twist it tighter or loser, and it will tighten from both sides. I intend to pull these bolts, and grind them down to buy me some space to take up slack. Put them back and tighten them up. What I was wondering is this: Does anyone think this is an absolutely horrible idea for a temporary solution, and think I will die or break my mast or sink my boat and have to row sixty miles back to shore. And secondly, does anyone know of a good reference I can find for reading about determining necessary tension based on gauge, mast size and configuration particularly for wood masts and unique rigging configurations (like a schooner!).