Again, not an in-depth post or anything, I just found a few photos on my phone the other day stemming from an article that was never written (that happens), and thought I could use them to provide hopefully good content for you :-) Stances are often viewed to be unrealistic and many never give them much thought when looking at the postures within Poomsae. They could however, have an important part of your application if you chose to look closer. I've picked this up from both Mu Duk Kwan practisioner, a Keysi seminar, but the man who has opened up my eyes for their true potential is Samir, an incredibly knowledgeable guy who specializes in Okinawan Karate. The examples in this photo are simply a taste, but they are functional and can open up a wide range of possibilities. That being said there are countless other ways to use stances than the ones here. On the left you'll see apkoobi being used to crash into the opponent and take out his structure. On the right you'll see a stance being used to trip the opponent. Both are amplifying the hand techniques being used.