Turbo 3RZ-FE 4Runner - Test Drive with Turbo Kit

Quick test drive video as requested several times. Note: At the end of the video, where the AFR and Boost gauges are shown, pay attention to the AFR gauge when I go WOT in first gear. It stays in closed loop, but then goes open loop as soon as it hits second. For everyone who knows about/tunes these trucks, is this normal? I am concerned about it being so lean for being in boost under load while in first gear. Any help would be appreciated.