I tried this on the Cal site, and got some good input, but wanted to get some broader thoughts.While sailing my Cal 20 last weekend, my starboard upper shroud went slack. Looking aloft, it was clear that the spreader was angled downwards, maybe 10 degrees, towards the deck.Before I take her out again, I obviously want to fix this. All advice welcome, especially before I go aloft! At this point (from the dock), it looks as though the spreader brackets (that bolt into the mast) are ok. The spreaders themselves bolt into these brackets. Is it a matter of tightening those spreader-bracket bolts? Or should I just tape the spreader ends to the shrouds?And, while we're about it: how do I know how much shroud tension I need? I called North Sails, who told me that the tensions on a Cal 20 standing rigging are too little to register on a loos gauge. So I don't know how much is too little, how much too much.Thanks in advance for all your help, everyone.Dick