I never liked the fact that the clips do not hold the wing securely at all and tend to deform and/or break the wing if you happen to get upside down. I noticed several of the fast guys at my local track (eg munrath), use the "washers" like on an 1/8 scale buggy to secure their wings I thought that was an awesome idea!

I do like the wing mount "nipples" since they hold the wing securely left to right (assuming you cut the wing holes precisely) but do a terrible job up and down (z direction). Preserving the nipple would also allow me to continue to use the practice wings I have. So what I did was cut down the nipples leaving a boss to give the xy support. In addition the "boss" allows for a little more thread engagement. After cutting them down I drilled and tapped for a 4-40 screw. Note if using the stock plastic mount you don't have to tap. Use a #43 drill bit to make a pilot hole.

I cut them down such that they are just a little thicker than the wing.

I then cut a hole the same diameter as the wing mount nipple in a piece of velcro (loop side) and stuck it to the bottom of an 1/8 scale wing "washer" and trimmed the OD. If I had a sheet of rubber, I could have used that. This allows for a tight fit (z direction).

Here it is all together:

The wing now has zero play:

I will have to do mine like Micro did his though. I don't have aluminum ones but I can sure appreciate the work you had to of done. Looking at mine looks a bit uneasy with plastic. You can do the same mod with the plastic mount. Cut of the "nipple" just like I did with the AL. mount and drill a hole just don't tap it since the screw will do that for you. I recommend a 4-40-unc screw since most of the screws in the kit are the same.

Does it require any special tools and or skill to tap the aluminum mounts for this mod? Yous looks fantastic. I cut off the "nipples" using a Dremel cut off wheel. Cut them a little longer than you want them to be and sand them down to the finished height. Get a 4-40-unc tap set, then drill your hole. Next run the tap down through then back it out. You're done!

You are no longer using the angle shims? I'm not using them now, but you can if you like (note the plastic wing mount works exactly the same as the AL. mount).

Hope this clarifies things!