So, I've been watching Frank Shammy's advanced submission instructionals recently and he's got one part talking about the advantages of giving away your back. He says that you can try for my techniques than your opponent - IE Shoulders locks, ankle locks, heel hooks etc V your standard RNC. So, tonight, I rolled and purposely gave away my back... My instructor wasn't too pleased and started yelling, but I managed to roll through and eventually got a heel hook. What's your opinion on it? Never give it away or give it away?