If you're slow, start with 6 or 8 lbs (if you can do it safely landing wise). Any less is more psychological than anything. Add 2 lbs at a time to get to your middle range.
A good drill for all of you to go up together and get in a fairly loose circle. Now (if you are all decent enough to hold a column of air)
signal from the IC everyone close your eyes and relax into a comfortable, middle of your range, mantis posture slowly count to 5 or 10 open your eyes and find each other
it'll be pretty clear who needs more lead and who needs to start exercising and eating better
actually, video is good here to identify if anyone 'relaxes' into a really crappy body position - they might need to 'fix' that before anyone adjusts lead (someone might just 'relax' into a heels on butt backslide or something....that would just mess up the exercise and require more basic training first)
edit: tunnel time is different, it's a VERY quick and effective exercise and not need to do the eyes closed thing at all - just get in there and see who's straining slow and fast and get the fixes done real time. I'd hesitate to put 4 people in a tunnel with eyes closed at the same time
(This post was edited by rehmwa on Feb 25, 2013, 7:17 AM)