You really are desperate if you're comparing speed without comparing acceleration, while completely ignoring damage, penetration, range, scatter.
Also, the IRONY of saying I don't know stats, while you provide false ones yourself.
IS-2 max speed is 5, not 6.
How often you use that speed as well?
IS-2 isn't exactly a chasing tank and you're not going to go balls deep with it, so that speed couldn't be more irrelevant.
Stop grasping at straws.
IS-2 and KT share exactly the same problems, stop being so ignorant.
