50% is already an achievement ! Its very unusual to do this, using just the CCUs from one sale, so you are obliged to stock upon CCUs over time. Those old exploration packages are great when you can get them !Yeah I grabbed an old HH->Polaris out of buyback on a whim just in case the Polaris makes an unexpected price jump this year; I'm worried it's due. . .
I have a harder time figuring out my exact cost of each ship than you guys as most of my ships are all built out of the old 5-ship Explorer package, but it total it's averaging a 50% savings, netting me the Carrack w/C8X, BMM, Redeemer, Scorpius, and a Cutty Black all for $1000. Have unapplied CCUs to make the BMM into a Polaris and the Black might go to either a 600iE or the new Galaxy!