Small but significant tension wrench modification

[Devhad]

My primary pick set is a southord. The wrenches are good when I don't use a TOK but I noticed an issue where I would successfully pick the lock but not know it because the squared off end of the wrench was digging in to the soft brass in the bottom of the keyway. So to fix this I rounded the lock end of my BOK wrenches and haven't had the issue since.
It mostly happened with the practice locks at work that were abused by rakers I'm thinking many wrenches had made small nicks in the brass.
It was frustrating bc I was trying to show the benefits of learning SPP to coworkers and I couldn't get simple locks to open.