i don't have Nexus, so here is my question. As a Nexus, do you "have" to use it? In this case, it will faster if you fill up one of the form in advance and go to the regular line. Can you do that? As mentioned on another post off another thread, I did a Gate 81 landing to Gate A47 in 9 min yesterday.
You are never obligated to use your Nexus privilege. You can use regular lanes if you prefer to.