Wow I didn't expect this much resistance for the need for a backstay adjuster
. Sailing for 35 years I assumed everyone used them.
When the wind is us up say 15-20+ with waves, go stand at the side of the mast and watch the mast center pump back and forth with a soft backstay. That is a big risk, older boats used baby stays to stop it.
NOw better designed rigs use the backstay adj.
Each time it pumps ie; out of column, the mast is shorter overall, the result is the headstay sags off to leeward, the lee shrouds get slacker. ( all wearing the connecting parts
unnecessarily) The mast head also falls off to leeward, resulting in excess heel.
Go to the bow and take a spare halyard
to the tack fitting now sight up and see how far the headstay is sagging, this produces more heel less forward thrust the draft in the jib
is moved aft. Most sails depending on the size of the boat are designed to sag 6-15", lets use 12" as an average.
I bet some of you guys advocating no need to adjust would show 24" plus.
So your stick is pumping, the loads are be transferred all over the boat rather than being in a stable locations all bad for the hull flex & rig, I guess you guys never saw a stick go down, it is due to one of those parts
not being stable rather wiggling around wearing and failing.
This is to say nothing of the strains on the spreader tip to shroud
and spreader attachment point on the stick.
When the stick pumps also look at the main the draft is pumping fore and aft wearing/flexing for no reason.
These masts were designed to remain stiff in column that doesn't mean straight it means with bend fixed for the wind and sea conditions.
Now all this in practical use is simple, 4 settings will suffice.
U can use the pressure gauge on hydraulic rigs.
But those with a cascading or other mechanical means just mark the line or attach a small stick or rod with 4 points to measure quickly.
In each of those wind speeds check pumping and headstay sag, not the pressure or measurement otherwise.
I surmise that many of you are reefing do to excess heel way too early, before U reef,
crank the backstay, the boat will stand up by depowering the main, tightening the headstay will move jib
draft forward and the entire rig to windward.
I know you're not in a rush, if your stick crashes to the deck just pray no one gets hurt or worse.
Now should I ask how you set the mast up to begin with?
How do U find if the stick is centered port/star?
How is the initial rake in the stick checked?
I know you're not in rush but since you're not in rush & have soo much time set the boat up right.
I hope I didn't waste my time,
I saw 3 sticks go down over the years, don't know Y but it isn't pretty. If you're off shore it must be ugly.
Ps: NO turnbuckes can not do it they weren't designed to turn under these types of loads the threads will gall and fail.