As fanatic of the happ supers I'm sorry to say that the quality of the last specimens (that are NOT marked IL anymore, at least not the ones that i received) that i bought is slightly lower than the previous ones, especially that dust cover washer is is thin and made of poor quality plastic but the worse thing, can be fitted under the panel only (the old one instead was thicker and had a nice textured surface that was ideal for using it over the panel), the quality control seems more "forgiving" than the older ones, they still feel reliable anyhow and the switches are still cherry ones ( I prefer matsushita so i will chage them anyway).
My suggestion is to buy everything from the same vendor if you can, it will save you a lot of trouble.