IQCA
After considering many times, I decided not to store the exp he gained after he reached bottlenecks. The reason is as you said, too broken. Hans can clap S-class monsters now while being at Level 50 which overall, is still considered as a low level. Additionally, the bottleneck quests would be a little meaningless for him if that happens. Also, he won't have that sense of urgency to unlock his level cap as soon as possible. There's also one more reason but it would be spoiling if I said it. Anyways, thank you.