Crazy as it sounds sometimes if your knackard hand flying perks you up. Gets your hormones running and mind working relieves the bordom. It actually forces your SA up a gear as well. Until you have done 6 days in a row flying 4-8 sectors a day starting at 6am then moving after three days to starting at 11am finishing at 9pm or later you can't know the feeling and thats not ment to sound pompous.
So after they have flown two approaches with no deviations to note on the report your solution would be to have an Autopilot and then to decend down to 50ft (and they had aready been down to 90ft) which is 150ft below thier mins in a 7 ton TP travelling at about 130knts? And to be honest you and I don't know if it would be fine.
I don't think we had ADF, let alone GPS. Just INS and TACAN.
But did they not send a bloke along to supervise you and deal with that sort of thing?