Lollipopping in 5th week of flowering?

Well, considering it's a sativa, you're less than halfway through flowering. You could lollipop now if you wanted. No telling how she would respond though. She will begin to focus on other buds, but there is also a recovery time after a stressful defoliation like this. She also wont have the same healing power as she did during veg. With 7-10 weeks left in flowering, however, she very well could recover and produce better flowers. If the choice were mine, I wouldn't lollipop this late- its risky- but you could try it...