1 week, the lower buds will see no benefit from one week of no fan leaves.
In my mind, an unscientific one, the easest way to look at it is this, if you remove the fan leaves to aid the bottom buds, you're simply harming the top ones to aid the lower. Swings and roundabouts, might as well just let the top ones grow to their potential instead of compromising them for a half arsed set of lower buds. And personally, plants don't shed their leaves in their last weeks to aid the lower so why fukc with nature