Oh, yeah. The whole C-rated,/D-rated thing. That's an RP quirk for this save.
I am not by any means trying to make the absolute best ship, though granted, I was keen to get opinion on shields.
This save is just about fun. Having a laugh. Flying a really low-spec fighter whose hull isn't even built anymore seems a great way to do that.
Ok!
About the shields, I can definately confirm that they are very weak. Basically, bi-weaves on a Eagle are only usefull when you fail your evasive maneuver, they take the first few shots of incoming damage, but they won't hold for very long at all.
I used size 3 bi-weaves on my Eagle for a while, and later upgraded to a modded standard A3.
The good thing about bi-weaves is that they allow for a lot of small piloting errors, and recharge very quickly in between.
For exemple if your ennemy wants to joust, damaged bi-weaves are able to regen to full capacity between each joust, until you manage to get behind your ennemy again.
However you can't rely on them for anything other than a stray shot. If your ennemy has a SLF, or a wingman, or a cop drops in, you can start running because you're gonna take some hull/module damage rather quickly.