What do you think of this system.

Start at 1 and move to 7 as it loses. Reset on a win.
It costs 35 to do the run of 7 bets.

I was thinking to do all 3 colors. Starting with the first color, then on spin 2 if the first color loses, then start the second color at the same time progressing the first color. Then the third color on the third spin. Keep all 3 going, but out of sync with each other.