to wide? darn, they're still too narrow for me... then again, it must be my wide, malformed head, LOL.
as for as seeing reflections, i think it has to be due to the lack of a lens curvature, thus light gets in between your eyes and the lenses, causing you to see reflections.
as far as changing lenses, it's real easy with the Four, just push the lenses out with your thumbs pressing on the face side, while the rest of your fingers supporting the frame. they should pop right out.