ReneeDr:Thank you so much to all of you who chimed in here with tips for me. I now have some clear ideas in my mind .
don't forget the wisdom from "SparticleBrane" - breathing is one of those MAKE or BREAK parts of the exercise. after everything is 'unclipped' and you're ready to swing the BC around, make sure you EXHALE FULLY (no, don't hold your breath, just EXHALE FULLY) so that you'll be maximum sinkable (is that even a word?) - and keep the BC close - super close - i mean REAL CLOSE - to your body to minimize the amount "CENTER OF GRAVITY" shift that will occur. once the BC is in front of you (and on your knee, or being 'hugged' to keep it close to your CENTER OF GRAVITY" - take a few normal breaths. when you're ready to put it back on, just reverse the procedure, making sure you EXHALE fully, keep it close, etc etc etc....
REMEMBER - this maneuver is not a race.... do it slow and deliberately.... breath normally while unclipping everything - exhale fully as you're about to swing the BC around - get it where you want it to be, take a few normal breaths.....