That first video just sold me on the Shure
I'd rather use the Blue for recording, but I prefer the better off-axis rejection, higher output, and smoother response of the 58.
I don't want significant output loss when backing off from the mic a bit. With the blue, you appear to lose a lot of output once you back off the mic at all.
Thanks for sharing the video!
Well at least I could help you out, even if it wasn't the result I expected