On the older steel frames there was allways a little gadget to adjust your frame tag on. In Holland we call it a "nok".
Nowadays the carbon fibre frames don't have this nok anymore. During competitions most guys mount the frame tag on the frame using "tie raps".
I wonder if one of you guys came up with a better idea? Since the tag is gaining drag, catching wind while flippering in descents, and it's a hassle to mount it on the frame each time.