Knuckles in the water is fun where you are going full out and lets do a 90 degree turn now then 2 seconds later a counter turn. So going, then a hard right then 2 seconds a hard left. Basically it is a cheap way to throw off a torp that is trying to home in by creating an air pocket and then the water rushing in that void makes a sound that the sub tries to use to mask itself and so lose the tracking torp as it locks onto the knuckle.Skipping will get you stitches..... Flank speed isn't all that exciting - a little vibration throughout the ship, but it doesn't rattle dishes.. Angles and dangles is fun and is an evolution performed usually after you've been in port for awhile. You check stowage and ensure everything is secure by diving and ascending using up to a 30 degree angle. You just hang on and listen for stuff to crash because items aren't secured properly. For torpedo evasion maneuvers, you're hauling ass anyway (ahead flank cavitate), but any additional noise doesn't help your chance for survival.