What does his belly look like? Does he have clean white belly scales all the way down? The center scales? If so, I'd pair him to something in the BEL complex. If not, it really doesn't matter what you put him to but that nice reduced pattern and light color should improve on just about anything. Then if it produces anything with the same pattern and traits, hold back a female to raise up for a breed-back to see if anything else is going on in there.