Not really sold on the idea of using Safetycom enroute in remote areas, I much prefer using Scottish Information, military LARS if available or TRACON depending on where I am. My experience flying in the highlands is SI have a pretty good overall picture of the traffic in the general area much more so than I think I would get from hoping others are self announcing enroute on safety com. Plus if the **** hits the fan you're already on frequency with SI and they have a ballpark idea where you are for vectoring the cavalry.