Angela
Your understanding for geting "free status" is correct HOWEVER
Weight Watchers suggest that you be where you really want to stay at before beginning your maintenance plan BECAUSE the purpose of those 6 weeks is to LEARN how to maintain and stay the same. WWers adds points and monitors your weight so at the end of the 6 weeks...............you should be staying pretty much the same. They allow a 2 pound difference even on the 6th week if you are within 2 points of the goal you chose you become a FREE Lifetime member.
Many do make the choice to continue to lose during that 6 week period but then have a tendancy to think they have "arrived" and have not really learned maintenance. I have seen this happen time and time again.so just be careful.................and remember you are not really experiencing the maintenance stage if you are not adding points during this time.
YES.you will still get your LT status.
Just BE SURE that when you hit the weight you really want to STAY at then find out how to do maintenance!

Keep in mind EVERYONE wants to lose a few more pounds and have a little "buffer"!!!
Good Luck!