Re: Back stay boom supporter broke - now what?
95% of the time a topping lift doesn't need to be adjusted.
If it is just longer than the leech and light enough it will do the job without adjustment. When you raise sail the leech will slightly lift the boom and detension the topping lift, letting it blow out of the way. When you lower the sail the boom will drop a couple of inches until the topping lift does it's just.
I only have an adjustable topping lift because the Salish Sea has a lot of light air and I will tension the topping lift to avoid closing the mainsail leech when sailing in very light winds. I adjust it about once every 10 sailing days.
1986 Pearson 28-2 "Elena"