I made ExPlat for the first time this year. I fly regularly between JFK and LAX. In the past I have always used evips obtained from friends or co-workers to try to upgrade to business class. The way I read the Explat rules, I will get a free upgrade on domestic flights if inventory is available. Is there any advantage to continuing to use evips to try to get upgrades on domestic flights? I've searched a bunch of threads but am still not certain of the answer.