I can't count how many times I've heard someone whine that one player changing teams doesn't make a difference. 

On every map I've seen the changing of one player turn the tide.  A lot of times it will take 2 more rnds of swapping 1 player for 1 player.  Assault would be the only map where a drastic change would be necessary, since it is severely favored for the ts.  Swapping huge amounts of "good players" does nothing but stack the other side.  You can't have all the carnivores on one side and herbivores on the other. 

Saying that switching me won't matter is the biggest stat whore cop-out I hear.  I really don't care or know about map stacking in mini-games.  Not my cup of Tea.  You map stack aka team stack like no other.  We have even warned you in the past about switching to the harder side when they are rolling the easy side.  I've seen you do this a few times.  On aztec you initially join ct, nuke=ct, italy=t, dust=ct, etc.

You might be trying to play more balanced, I have not witnessed this at all.