http://goallineblitz.com/game/forum_thread.pl?thread_id=4686077&page=1#42967169
Someone check my calculations, but here is what I think, presuming full XP...
Day 4 = level up after game.
Day 6 = level up after game.
Day 10 = level up at rollover.
Day 12 = level up after game.
Day 14 = level up after game.
Day 18 = level up after game.
Day 20 = level up after game.
Day 23 = level up at rollover.
Day 26 = level up after game.
Day 28 = level up after game.
Day 32 = level up after game.
Day 40 = level up at rollover.
Now considering that it's a set amount of daily and game XP for levels 1-15, I see the new boosting time as happening on or before the first regular season game since there is no reason to wait any longer. Thus if you boost to level 4 day 1 or don't boost at all, the level up days will remain the same and you will hit level 16 on day 40 if you boost, level 13 if you don't.
Someone check my calculations, but here is what I think, presuming full XP...
Day 4 = level up after game.
Day 6 = level up after game.
Day 10 = level up at rollover.
Day 12 = level up after game.
Day 14 = level up after game.
Day 18 = level up after game.
Day 20 = level up after game.
Day 23 = level up at rollover.
Day 26 = level up after game.
Day 28 = level up after game.
Day 32 = level up after game.
Day 40 = level up at rollover.
Now considering that it's a set amount of daily and game XP for levels 1-15, I see the new boosting time as happening on or before the first regular season game since there is no reason to wait any longer. Thus if you boost to level 4 day 1 or don't boost at all, the level up days will remain the same and you will hit level 16 on day 40 if you boost, level 13 if you don't.