@slowwalker, Finally I got some idea why Yong Ju Sa Temple dedicated prince Sa Do. You found two difference points in Dae Wung Jeon hall.

The first difference was the dragons hung beneath the eaves under the roof.

Yeah. After got point from you I believe it from my eyes. They're so long. I can't get imagine about corner stones difference. But your vision so powerful with live visual. Perfect photography collection.