Turtling is when your unit draws up beyond it's normal flacid size and stays that way after a workout. Most people get this when they overdo a workout. I try to keep a pretty good erection while cooling down, this will help keep turtling to a minimum. You can also do some Edging, Ballooning or Erect Kegels at the end of your routine to get the most out of your workout, I usually do this in the shower. Doing some light stretches such as piss pulls throughout the day will help also, just don't get carried away. Only do full stretches after a good warmup. Hope this helps. HT.