I've looked at the various combinations of parts and weights and was curious if it's even possible to build one. So far I've not had much success.
I mean yeah I can put a Prismatic Shield Generator, or a Military Grade Hull on my "Fer", but is either truly worth while?
This is correct. Shields operate off of Base mass, or Hull mass. Whereas thrusters operate on total mass, ie. with modules and cargo counted towards it.I don't think that's how shield value works, I got this of the ED wiki
Each ship has a base mass which is the main factor in determining how effective each shield type is. If the ship's base mass (doesn't include cargo or modules) is below the optimal then shield strength is increased by a modifier whereas if it is above optimal then the shield strength is decreased by a modifier.
So I think it doesn't matter what modules you equip to a FDL, it's only the ships base mass.
Really all depends on what you want to do with the build. But here is a maxed out RES farm build
http://coriolis.io/outfit/fer_de_la...322725.AwRj4yrI.CwBjYRhCdgmBCTBcIA==?bn=FDL 1
you arent going to get an optimal FDL if you are trying to stick to the optimal weight of the shield.
lightweight or not it honestly doesnt really make a difference, it makes very very little actually.
This build has been perfectly minmaxed for PvP and you can see it is around 200 tons over the optimal hull mass
http://coriolis.io/outfit/fer_de_la...35d2766.AwRj4yrI.AwgsIyq0g===?bn=Sundae's FDL