Some kind souls help us sto noobs out with a how to craft guide!

[Scout101]

I'd say high-end weapons, but since you have to grind STFs anyway, that's a better use for the Rare Borg Prototypes, since you can't do much else with them. They turn into purple Mk XI ship gear nicely, and cheaper than wasting dilithium on it. Although, it's essentially taking that amount of dilithium and turning it into about 1.5 million EC, as long as you pick a popular Antiproton weapon...