Line placement at competitions

Hi guys, we are thinking of using line sensors for autonomous; however some of you have expressed displeasure about the lines not being placed correctly at competitions. How often does this happen. Is it just local competitions, or does this problem happen at worlds and the U.S. open?

I would say that this only happens at the first few competitions or where the host is new/inexperienced. Remember that the lines are supposed to be placed a certain way and you can always politely ask to have them corrected.