Just a comment about eyelets, not at all suggesting to use them:

Many, many decades ago I worked at Motorola when eyelets were used.

The original style, and common today, is a tube with the top edge rolled over.? There was no problem wave-soldering the bottom or the component wire if present.? The problem was that the solder inside the eyelet would not consistently flow over the top edge? of the eyelet onto the top PCB pad.? In effect only an unreliable mechanical contact was formed on the top side.

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The problem was resolved by using eyelets with a slit in them that allowed the solder to flow out onto the top pad.

Actually there was no rolled over edge, the eyelets were straight slit tube sections that were expanded on top and bottom as part of the eyelet insertion process.

Bertho

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