Ah V springs! They and ribs are my two major peeves. I happen to have been unlucky with V springs, having had two break on consecutive hunts in a high quality boxlock, meaning one of those with super thin grooves on engraved grip screws, ie major expense to take apart. I know that this is a super rare event, but once it happens it leaves its mark in the mind and the wallet.

An old and decrepit Westley Richards droplock I own has a broken coil top lever coil spring, had it for decades before I bought it. The guide kept it operating, still does.