No it can't bring you in trouble. But you have slack on your safety line even kite/clam cleat is fully powered?
Yes, you re right. even if the kite is fully powered, there is a slack on the safety line.
I also use north 4 line bars and when I depower kite normaly safety line has a slack if you depower more, than more slack... But when kite is powered than the safety line should not have much slack... Don't worry about that if its a bit longer. If you release the safety it's even better, cuz your bar will go further away from you.
ok, I just cannot understand how this happened. Even if the center lines were stretched too much, the new line had to be shorter, not longer.