Man where is FC31 , when and how many we will have them, J10 was not rejected because of FC31 , Its because of our Love for F16 and some Foolish hoops from JF17,
Do you seriously believe it will be ok to have 250 odd JF17 and only 150 (Max) J31 with 100 old F16 is enough for IAF or If I say defensive force .
My brother if war happen in 2025 IAF's SU30(with SU35 upgrade kit) will be more then enough for whole PAF . it will be like 500 Su 30(as IAF plains) vs 495 or 500 PAF's(250JF17 , 125 J31 and 120 F16) whole fleet.
But if you go for J10 we can easily adopt this bird in 5years Max, and 200s of them will surly help us to counter IAF's numbers , J10s are not 3rd grad birds , With Pakistani Upgrades they will be as good as F16V.
thank you