Well that was a fun night
OK just so you know it's not the easiest thing to fit. The idea is you fit the mounting tape (white spongy stuff) then you drill through the bolts then go through the boot and the "foot" then into the leg of the wing and the whole lot squeezes down.
The problem - The legs are so wide they sit on the outer edges of the boot on top of the curve at the outer edge, there is no angle adjustment in the legs so when the wing is fitted it tries to pull the feet level.
As the feet are screwed on the center line it does move - if you remove the tape it would look better but it would also leave a gap on the outside edge and no doubt mark the paint.
The way I see it is you either have someone professionally bend the legs - could be problematic as they may well be cast aluminum so may crack - you have the feet machined to allow for the angle required or my option would be to fiber glass over the joint, filler blend and paint them.
Either way something needs doing to make them a "perfect fit"
I have to admit as BGW's go it is a nice one, we did compare it to mine and mine is just as big