[quote=1Charak2]
by the looks of things he would be able to transform for 2 hour time is shortend if he used hissatsu due to exhaustive effects
[/quote]

Okay. The way people type... confuses me. No offense, though.

Do you understand what a Shade is? 
It's -in a nutshell- a monstrous aftereffect of the incident that gave us our Hissatsus that knows of nothing but destruction and/or murder.