Same. As soon as I got my Dingwall basses (sadly no longer with me) I moved the rear strap button down towards the centre of the body to stop the bottom kicking out when I played standing up.
Interestingly (or not) my main Shuker has two strap buttons on the back of the body. Yes, they do act as feet for when my bass is stood on the floor, thus protecting the finish, but actually my strap connects to the lower button, not the higher one.
i discovered that by attaching the straps at “opposite corners” of the body, the bass was more likely to stay put in exactly the same position all night, whatever I was doing. It also holds the bass flat against me and counteracts the small food baby I have grown recently lol