Why We Do What We Do (An in depth explanation of EHP and ICC 3.3.3 tanking mechanics)
I have heard numerous opinions that stopcasting and downranking are fun. As a player who didn't get to start until wotlk, I have a hard time picturing those as fun, however. I map heals to mouse clicks and only have so many buttons. Additionally, due to latency or whatever, sometimes when I have attempted to stopcast, the cast still goes off. I have noticed this even with as little stopcasting as we do now. If it was an every-cast kind of thing that your mana required, I might be VERY frustrated by the end of a raid night.
"he doens't need healing, he doesn't need healing, he doesn't nee-WHAOSHIT!wtf was that man!". Please stop leaning on TDR. -Teng