Cookie vs REM vs TEM

[rddvet]

Sometimes you pretty much have to if the jump isn't perpendicular to the main line. Or if there's no mainline arrow to hold the jump line in place.

Agreed. I was just keeping it simple

 

[Fat old english bloke]

I just use pegs and occasionally, very, very occasionally, non-standard REMs for surveying.

 

[mr_v]

When you tie in for jumps, do you still use the systems arrows (if present), or do you place a REM and tie into that instead?

I tie into my REM to minimize any confusion.

My REMs and arrows are numbered. I ensure proper order when placing them on the piggy tail and during navigation.

 

[halocline]

Agreed. I was just keeping it simple

I haven’t dove in FL caves, but there are a lot of unmarked jumps in Mexico, and it’s certainly not uncommon to encounter a marked jump where someone has already tied into the system arrow. After a while, I just started tying into my own REMS for every jump. I usually place them on the cave side of the system arrow about an arm’s length way. I don’t know how important it is to always have them on the cave side, but I do think it’s important to keep them far enough way from the system arrow so that nobody would ever confuse them with double arrows.(that came from formerly using my own arrows) It also keeps things a little neater if someone else ties into the system arrow, there’s more space between the jump lines.

I also drop a cookie on the end of my jump line right next to my spool. It just adds clarity and obviousness identifying my spool, maybe not so much for me, but for someone else. If another team was to remove my spool by accident, they’d have to also remove my personalized cookie from the line and unless they are beyond hope, that’s going to be a big clue that they have the wrong spool.

Mexico navigation can be a little unpredictable IMO; I’ve seen really good divers miss blind Ts (there are a few horribly placed Ts in Mexico) and it seems every year there’s more divers down there adding to the possible confusion at popular intersections. So I avoid stress and try to make things as obvious as I can.