I realize this is an old thread but I think the OP's question has some validity and some of the E-R.org members who know the nuances of Social Security may have good ideas.
DW and I just attended a seminar on the subject of SS this evening. One of the possible strategies was Start Stop Start. I'll explain to the best of my abilities.
Start collecting at 62. Stop collecting at full retirement age. Start collecting again at 70. I don't have a copy of the numbers presented at the seminar but the presenter described it this way...
When you start at 62 you receive the low payout commensurate with that age. You collect that lower amount for approximately 4-5 years until full retirement age (usually around 66 - 67). At FRA, stop the payments and let the benefit increase in value due to the "8%" factor for three years or so. Then start collecting again at age 70. The presentation I attended indicated the amount you will receive at age 70 will be nearly the same as you would have received had you waited until FRA originally. So yes, you still take a hit in the amount you receive at 70 but it's a way of eating your cake (taking SS early) and having it too (collecting a higher amount at age 70).
I may take time to do some back of the napkin calculations on this but if anyone else has actually taken this approach it would be good to hear from you.
One reason I think the numbers supposedly work in your favor is the assumption that you receive COLA increases during the five years from 62 to 67 and then you add 8% to that COLA'd number for the next 3 years.