The writer of Hebrews places the gifts of the Spirit into the past tense. Which I believe helps determine Paul's use of "perfect" in 1 Corinthians.
“while God confirmed their witness with signs and wonders and various miracles and gifts of the Holy Spirit distributed according to his will.” (Hebrews 2:4) (NET)
Correct and what provided the Spirit?
Nevertheless I tell you the truth; It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you. John 16:7
This Jesus hath God raised up, whereof we all are witnesses. Therefore being by the right hand of God exalted, and having received of the Father the promise of the Holy Spirit, he hath shed forth this, which ye now see and hear. Acts 2:32,33
Who in the days of his flesh, when he had offered up prayers and supplications with strong crying and tears unto him that was able to save him from death, and was heard in that he feared;
And being made perfect, he became the author of eternal salvation unto all them that obey him; Heb 5:7,9
Wherefore he saith, When he ascended up on high, he led captivity captive, and gave gifts unto men. (Now that he ascended, what is it but that he also descended first into the lower parts of the earth? Eph 4:8,9