Very difficult to install, expected better - Midwest Industries Mi Hk Mp5 Top Rail M-lok Black

I've previously used a lot of MI products and been very happy with them. I liked the look of this item, but I found the mounting system to be very poorly designed.

Installation requires carefully fitting four "feet" under the mount and then threading screws in from the top to secure them. The "feet" are extremely difficult to fit into place and keep falling out. If you screw in one "foot" you can't adjust the position of the other ones, so it's a tedious and frustrating process to install. After several tries, I gave up.