Nope you are correct. My flaccid strech is 7.75 and erect is 7. Like DLD said think of it as a bag you can stretch a bag out and measure it. Then fill the bag with air and measure it again. I would hope your girth is more when erect than flaccid stretch and this is where you lose it.
atm my stretching routine takes about half an hour. sometimes i skip jelqing cause it makes a bump appear on top of my shaft below the head. it isn't painful and it goes away, but not sure what that's about...