moving up with 10 buyins while 6 tabling

[demon102]

I was having a chat with a friend on aim where I told him IM gonna start with 400 bucks and start 6 tabling the 6max nl games on stars. I move up the next level when I have 10 buyins for the next level. If I go on a downswing in the middle of playing and Ive reloaded my entire bankroll on all my tables Ill just move down. I am wondering what my risk of ruin is with this bankroll challenge is.