Re: pace beads
What everyone after me has said are VERY valid points. On LRS teams, we always have two guys running pace count, I can't remember anyone but the new guys (who aren't even on the teams yet- selection and training section) using them. But anyway, between two guys running pace count (scout and senior scout, and often times the TL) and using terrain association, you really should never get lost. Worthy to note is, you should never rely on a single method, or on one person conducting the patrol. Always have a back-up to your back-up, and be sure everyone else is tracking on location at all long halts. Everyone should already know the planned routes and points anyway, so it's only a matter of tracking progress for everyone else.
Of course, that is assuming you are not unfortunate enough to have a few idiots with you. Not everywhere can you vet and kick out the retards. They just better hope there isn't a break in contact!