http://aviationweek.com/defense/what-f-35-can-learn-f-22-upgrade-hiccups?NL=AW-05&Issue=AW-05_20180329_AW-05_738&sfvc4enews=42&cl=article_1&utm_rid=CPEN [login to see] 94&utm_campaign=14224&utm_medium=email&elq2=be05bf29b3d14d4f814618ec79371dc7
Interesting concepts - opting for the available upgrades as they come up when you jump into the cockpit. Technology is grand, ain't it?