That looks really good. I wouldn't have thought of a grinder on leather.
We really didn't get much rain on the ride on Sat. The road was a little wet at the start and just a few drops near the end. I got 60.8 miles in. Then it was raining pretty hard about 15 minutes after I got home. You are going to have to change your location if this weather keeps up.
Still not sure about that Litespeed saddle. I am afraid to change anything until after Solvang though. I just got it adjusted right.