I have a dope card on my the side of my rifle, and a really detailed dope card that has data for inclines/declines as well as a ranging card inside.
However, for most stages I just put the info I need on a blank card and put it in the top sleeve. On many stages, you're not going to have time to look up distance for a each target then look up the dope for that distance during the stage. Especially if you need to shoot several targets at different distances from multiple firing points. The smarter thing to do is list your targets and dope and/or leads specific for them.
T1: 4.5 mil
T2: 0.7 mil
T3: 2.6 mil
I've been using a Sidewinder instead of a wrist coach for this lately...
What's a "Sidewinder"?