Not a news, really. I believe most (any?) MPPT can be used with oversized array. Benefits are well known: the I/t curve (t=time) becomes flatter with larger array, the tip is clipped but shoulders are wider. Better production in early hours and/or on cloudy days.
Oversizing "might" have a detrimental effect due to more heat in controller operating near max output. Though I have a gut feeling that after you've arrived to clipping point, it doesn't matter how much you exceed it, heat is still the same. Perhaps somebody who understands the clipping better will correct me.
