Giving or taking from secondaries

[Ms. Marvel]

I bolded and underlined the part where your question was answered in the rules for you. Higher Tech and Att Primes make stronger weapons.

I think you misunderstood my question completely. I will now post a bolded and underlined version. It also comes in tl;dr format for your convenience.

Do weapons given to secondaries keep the power level of the summoner or not?

I'd say that the weapon is only the instrument used to express stats. So, the weapon is only as strong as the person discharging it. I did, indeed, misunderstand your question.