Channeling

[Tiggo]

why shouldnt it cancel the channel? i would hate it if it didnt?

Lag. Even non channeled abilities get delayed, some times a lot.
My Doombolts sometimes become 6-7 seconds cast time abilities
So, if you start channeling something you used 1000 times and you "feel" the timing of it, if it lags you could start casting the next stuff too soon and cancel it. Even worse, when spells are meant to be chained in a rotation. 1-2 seconds lag = rotation becomes useless.

yes but often while i channel i see enemy only has some hp left i perhaps want to burst a instant spell on him, i couldnt do this then untill channel runs out? odd behavior imho.

[Sulorie]

When you channel during a lag and you hit another spell, it would lag too and the 2nd spell would come delayed. I don't see a chance for interrupts here.