Anon changed this. Basically Mao's AP before was 6,000 and it changed to 7,000 to keep coherence. The MC's perspective hasn't changed, however, but we are wrong in that estimate.Out of everyone in the trials he seems like the one that would actually beat the Wyrm, depending on how smart the thing is.
Limit breaker puts his AP above Mao's if I remember correctly and that was before the Exalt training.
Also Jack was being powered by the Heavenly gate too. In Normal circumstances I doubt the Limit-Breaker can push beyond 1,000(EX, 4,500 to 5,500 for example).