When I'm setting off for a trip, I don't think about it living in a bag in the bottom of the toolkit - never felt the need to fit a brace for something that is in reality, a rare occurrence
Bit like buying a TT rear master cylinder guard - extra weight
I don't worry about it, I just bought a retainer from Vern. It's a good excuse to add some bling which may or may not be needed, but gives me peace of mind.
As for the weight JB, really? On here you are going to suggest that 1/2 an ounce is really going to make a difference