Ab strength-how quickly does strength build up with abs are maxed out daily? 10 pts?

Hello, I am currently seeking to increase strength in by abs(not definition, not yet anyway). I use a series of workouts that target the group and work them till maxed out nightly. I have done this only for 1 week however. My question is; and you can be anecdotal if you like, how quickly does ab strength pick up? Like in your experience, how quickly can ab strength double in terms of reps?