How did you retime the loads?

I have timed loads before and not every load is the same time, so your calculation for your new time with GreenUprooter's loads might not be correct because you multiplied by how many total loads there were in the game.

Ok, I'm going to make a video of W1 loading zone differences between Wii, Wii U, and Dolphin.

What about loading Newer as an ISO with a USB loader on a Wii vs using the "official" method proposed by the Newer team? Is there any difference in time like that? Are USB loaders allowed?

USB loads are generally banned because of drastically lower loads, and the fact that it's not official