Well Newfreighter, judging by your advertised PPRUNE age (70 ) maybe you should be grateful for the rest.
It's frustrating, I know, to get long blocks of SBY - but as you know it is somewhat '
nature of the beast '. You have to take the rough with the smooth; but if it becomes too often or peculiar to only you, then I suggest you approach your Rostering Officer first, then your Manager; if still no joy - try your Branch Membership Rep at the Association, if you are a member.
At very least I hope your Manager(s) read PPRUNE; and I hope you either get a SBY 'call-up' or you are able to make productive use of the time - either way stay happy bro' .