i once got invited for a KT25 3/4 guild run from another guild, a swedish one. we downed him, but i thought the positioning was rather odd...
they tanked KT near his throne, and they asked me and the other OT to tank the adds near the door we came in on. this seems like an odd setup for me, because the adds don't always appear in equal groups (sometimes 1-3 or 3-1, but only one tank on each side). if you tank the adds near the throne, you have to move less for them. also, if you tank him in the center, you have more room for the ranged.
have you ever been in a pug where the leader said you needed to position the boss in a way other than the generally accepted one?