It's not so important what the actual Snap Cap is
except for Aesthetic purposes. we all like the
Nickel Plated ones over the crap plastic.

The important part is the "polymer" primer plug
and what this is made of PLUS that it has a Spring
behind it that is set to the correct tension.

Personally, I don't like the snap caps with
Metal Primer Plugs.

I must admit that I think the Aluminium ones
don't look good.

Any comments ?