That is a bummer about the stripe. I hate it when paint and tape take a mind of their own. You think it all out, you work carefully to execute the plan and the paint and tape, often aided and abetted by the airbrush, say, "That ain't our plan" and make a mess. You will fix it and every time you look at it, smile to your self and say, "Nope, it was MY plan".
sp