User blog comment:Godisme/Deicide 10/@comment-1961713-20100617040442

God I think you missed it, when Isshin explained about the Dangai and how to attained the Final GT to Ichigo, this tells us that Isshin are knowledgeable than the other Captain. While it should be considerable that all the captain have already attain bankai and completed their final form of attack (refer Byakuya's bankai and Histsugaya's bankai). All the previous explanation says in order for shinigami to finally mastered bankai they must took them 10 years.

Moreover because Isshin may had predicts (how did that throwing knives things ended up in hi shihakusho anyway), he may had planned previously to trained Ichigo inside the dangai by stopping the Train Reiatsu Things, but then are delighted to found out that Aizen destroyed the things. For me the first part of the chapter is really cool anyway considering that previously from Deicide1 to 9 all we had is Aizen pawning all the others and that was kinda taxing anyway. That 1 hour equals to 2000 hours however are somewhat exaggerated on Isshin (Kubo) part, or rather the most easiest way for us human reader to understand but then Kubo have open new possibilities about the dangai... yeah about about the penal colony, what about the people who got caught by the current and thrown out of time, do they just died.

About Zangetsu on Isshin saying he is now more violent than previously. Well that just show us he had experienced with Zangetsu and backing all the theories that Zangetsu is indeed Kurosaki Family Heritage Treasure. And that how did knows Ichigo when first going to SS and all the techniques he had mastered, or in other words all of Ichigo's achievement in such a short period of time, like Aizen, Ichigo's development is all in Isshin's palm too.

Anyway for me I am satisfied with the chapter it is good, because it may had answered some or few issues on Isshin's part. Cheers.