Hope you’ve been able to find crew as the Scot sails much better with two, even three in heavy winds. Class races cut off in the low 20’s, but the vang is very useful in depowering the main. Rule of thumb is bring the bang line with you as you hike out, and loosen it as you come back in. We tighten it all the way and bend the boom like crazy in heavy beats to wind, but you must release it before heading down or it’ll break the boom. Almost always operator error when these break. For solo sailing with just the main, you should raise the center board a quarter to a third. This moves the end of the board aft and balances the helm you’ll get from sailing with just the main. Experiment until you can sail with little or no helm. And, you can certainly capsize a Scot in heavy winds, especially with the chute. Been there. It will turtle very quickly if you don’t get to the top of the mast, and then you’ll need a third party rescue since you won’t be able to recover alone. That can be a serious emergency out on a big lake, so I would be extremely cautious when sailing alone, and would highly recommend you get a masthead float from the factory and sail with it. If you do capsize, the float will give you time to right turn owt alone. Strongly urge you to go through a complete capsize drill at the dock if you sail this boat alone, and even if you sail with crew. A turtle all alone out on a big lake could be a disaster.