BLMA photoetched wipers have nice long "shafts" to facilitate mounting them in a hole. To me that results in much more solid (and cleaner) installation than just super-gluing them on the surface of the cab.
Well all, except for the tandem wiper for the windshields. Those appear to be designed to be glued on the surface (no shafts on the end of the wiper arms).
I suggested that BLMA revises their artwork to include those shafts on the tandem wipers (and that wouldalso make them more realistically shaped. I'm not sure if they will ever use my suggestion.
Here is the revised artwork I proposed to BLMA.
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