When the mast flops over will the cheek blocks ever be shock loaded?
That why you attach the blocks to the rotation arm with wimpy line that breaks first. The line acts like a fuse, in an electrical line.
I bought one of Goran Marstrom's personal boats. I noticed there were about 10 pieces of 1 ft long ~1.5 mm line tied to the front crossbeam. I discovered all the blocks in the rotation system were attached with that kind of line. If I screw up, the line breaks. I have spares on the boast and you can replace them on the water.