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If one attempts invention on a Blueprint Copy (BPC) that has production efficiency or material efficiency research, does that efficiency research transfer to the resulting tech II BPC?

Example: Say I have a probe blueprint copy with material research level 10, will that have an effect on the material research level of the cheetah BPC created from invention?

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Only indirectly.

The basic invention process does not take on any researched attributes of the BPOs or BPCs.

The only attribute of the BPC that affects the BPC output in the invention process is the number of runs on the copy. Generally you will either always want to use 1-run copies (mostly when inventing ships) or max-run copies (mostly when inventing modules or ammo). This comes into play when you use decryptors (or choose not to use one). These affect the invented Material Level, Productivity Level (Manufacture Time), Runs of the invented BPC, and invention chance.

However, there is still an indirect effect of ML/PL on BPOs. Usually when you make a T2 item, you have a few input products that need to be made which are consumed to make the T2, such as a T1 version of the item, and Construction Components such as Tungsten Carbide Armor Plates or EM Pulse Generator. Material levels on these BPOs mean you'll usually need to use less Moon Materials or other materials, which could lower your final cost of making the T2 item.

Putting all of these options together to figure out which is the best option to maximise profit is the interesting part of T2 manufacturing.

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I should really include links here to the offical Eve Wiki, but my work blocks it out so :( . Heres a handy calculator for working out decryptors, and invention chances and lists some of the other attributes they have : games.chruker.dk/eve_online/invention_chance.php –  camster342 Mar 28 '12 at 21:25

No, it doesn't.

Blue print copies are used in Invention. The process of destroys the copy, whether or not you succeed in making a Tech II BPC. Note that Materials and Time efficiency levels of the copy are irrelevant to the invented BPC.

Source: EVE Wiki

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It's suggested that you quote the relevant material from the wiki rather than just providing a link. That way, if the link changes or the text is (re)moved, we'll still have an answer to refer to. –  authenticgeek Mar 28 '12 at 17:45
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Unfortunately, the user asked about invention specifically, and the research level of the BPO makes no difference to the invented BPC –  camster342 Mar 28 '12 at 21:09
    
Oh, geez. Completely misunderstood the question. Fixing it now. Sorry about that. –  SaintWacko Mar 28 '12 at 21:18

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