Finally got to pool test my DSS setup last night while helping out a pool class. I wasn't too concerned with a perfect fit, as I knew it would take some trial and error, and, it would be way off for the pool (3mm vest only) if I set it for my 7mm, or off for the 7mm if I set it for the pool. Since I want to keep practicing with it when I help out in class, it got me thinking, is there a trick to readjusting back and forth? Do you just remember how much to take up/let out? Do you make fitting marks on the harness?