I practice racking using the slide but in matches I more often than not end up grabbing the optic body it itself. Fortunately the buttons on the SRO or RMR are harder to depress so have not have any issues with intensity being changed or worse turning the dot off….
However unloaded gun starts are not that common, maybe 1:6 per match or sometimes not even one. My carry gun is always loaded (unless I dry fire with it) so less of a concern. But good heads up, I’ll be more mindful of not hitting the buttons.