DraQ
Arcane
I'm more of a "explore ideas" and "build cool shit" kind of guy than "iterate through a design until perfection" and I've only had this game since little before the latest patch. Still, you'll find a lot of examples of the latter by other players. There's been design tournaments on the official forums and stuff like that.i.e. could you recapitulate your designs and show that they have improved greatly over the years, to when you started the game?
The main issue with honing your designs to absolute perfection is that stock stuff is very suboptimal so it kind of feels hollow unless you get someone else's custom stuff to play against - preferably with both sides refining their designs as they go - this game really needs MP it doesn't have.
The game is definitely complex enough to allow some non-obvious choices - even seemingly no-brainers like running your reactors very hot to minimize radiator area or maximizing thrust at given exhaust velocity (assuming you have made sure the crew won't get jellied) to maximize manoeuvrability can turn out to be less than obvious when it turns out that very hot radiators that are already close to their melting point flash off very easily when hit by nukes or that your ship has effectively no endurance in combat and immediately runs out of propellant after which its superior manoeuvrability no longer matters.
And again I want to stress the amount of customization you get in CoADE - that game in your sig allowing you to fit different engine models? What if you could actually *make* your engines including engine type, amount of cylinders, their dimensions, materials and fuel used as well as fuel mixture proportions? And same for all the other components?
The combat scenarios aren't just "drop ships, see what happens" either - this may be not that far from truth for battles around asteroids, but in serious gravity wells delta-v and acceleration both suddenly matter and you have many different options that may or may not suit your designs and fleet composition.
Plus, again, it's fucking space battles with technology that has actually been built IRL, even if just as prototypes and proofs of concepts. There are no things in this game - neither technologies, nor materials - for which the author couldn't find the formulae and numbers to punch in - no phazors, neutronium, FTL, deflectors or even fusion drives.