Yep, a pro attitude makes all the difference. I used to be in a band with a guy who was always having the strap coming off the button in rehearsals. He was a very talented player, singer and songwriter but low on work ethic or application. We badgered him to get straplocks and, eventually, he relented. We were amazed, it was quite unlike him. We played a gig shortly afterwards and, as usual, the bass dropped out for a while, then sort of came back, then gone again and he'd contorted into a hunched shape at the side of the stage. What happened?
The usual, the strap was only on one button, the other end lying on the floor, and he was trying to support the weight of his bass, a rather nice Tokai Thunderbird, in his hands, on stage in front of an audience
He had tried to install the straplock buttons with... a butter knife. Of course, the screws weren't tightened sufficiently and worked themselves out so, this time, the strap, lock, button and screw all came off. Attitude > Equipment.