Sorry if this is a misplaced question. I arrive at LAX on Qantas. I depart on Air Canada. Both flights business class on the same round-the-world ticket. I have 4 hours between the two flights. A couple of questions... will I have to stand in a huge immigration queue and clear immigration on arrival? Will I have to collect my luggage? How far is it between terminal 2 (arrival) and 6 (departure) and can it be done air-side?

It's been 10+ years since I flew through LAX and it was a horrible experience last time. Just trying to plan!