I’ll go along with that CF, I also found the Lucas Keinzle system far simpler to use. None of that fiddling about in the dark with stupid spring loaded retainers. Although the pear shaped centered charts did occasionally get chewed up if they snagged.
Now as much as I hate to muscle in on Harry Monk’s thread, but since we’re talking tachos, did anyone else apart from myself ever acquire one of these gadgets for checking driving time, break time etc?
Sweet baby Jesus! Talk about the junk we used to have to lug around. And this is just a miniscule selection from the mountain of obsolete driver related garbage that I haven’t yet got around to chucking out. And I haven’t even seen the inside of a wagon cab for nigh on ten years.