User blog comment:SilverRain/Ichigo's True Strength/@comment-5147109-20130701082110

Dangai Ichigo was as strong as he was due to the nonstop 3 months of battle with Hollowfied Zangetsu which means that his strength was his alone, combine that with the fact that all of his powers were focused into his own body which also explains why his Zanpakuto was fused to his arm granted him that level of power. It was stated that after he woke up from his coma his appearance reverted back to its original form which means all of his power increases had dissipated so once his powers were restored to their original state albeit with his current Shinigami powers being enhanced by the remnants of his Fullbring. Now that he understands where his power comes from and has made his inner peace so to speak with "Old Man" Zangetsu and "Hollow" Zangetsu and there is no more internal conflict with his soul essentially the gloves are coming off and that massive amount of spiritual power that he has is finally going to come into play.