Who here doesn't run a BOV? What boost levels are you running?

I've heard that several race teams don't run them - any links/names to back this up?

I know there's a popular belief on this forum that BOV's are for attention whoring purposes only, just seeing if there's any proof to that.

I know that compressor surge isn't exactly going to instantly destroy a compressor wheel or any bearings, but I would like to see the effects of not running a BOV for an extended period of time (I.E. - years).

Thanks.