Coming back to J-10C and Pakistan Air Force, I have always believed that Pakistan should work closely with China on the specifications of the J-10Cs, customized for Pakistan Air Force. The latter's fighting style is uniquely different from other air forces, based on environment, the opponent, the geographic location and independence decision making of fighting tactics.
J-10C is, in my opinion, an ideal combat aircraft that has the ability to off-set any set backs Pakistan could potentially face when (not if) america imposes it's habitually predictable "sanctions" on Pakistan. For if Pakistan's leadership tends to forget history, I would direct their attention toward what happened to Turkey, when they decided to buy S-400 ADS. Having spent billions of dollars, partnering in the so-called Joint Strike Fighter program. Today Turkey, a NATO member state, has been expelled from the program and deliveries of the F-35s, ground to a complete halt.
Pakistan ought to invest in J-10Cs, with an attempt to bolster it's fighter fleet with two types of fighters with AESA capabilities. Further developments to "Juice Up" the J-10Cs would benefit Pakistan tremendously, even though China doesn't require such upgrades to J-10Cs, since it has a vast array of fighters in its arsenal, like the J-20s, J-16s, Su-35s and J-11BGs.
For me, the procurement of J-10Cs would only make sense if Pakistan goes for at least 4-5 squadrons of the fighter type, with MRO infrastructure, as well as a deal with Russia and China for the fighter's engine maintenance and overhaul, done in Pakistan.
Over the past few years, better sense in Pakistan's leadership has prevailed and attempts to bolster strategic relations with Russia are being made. It is necessary that Pakistan forges strong ties with Russia, and it's already powerful relationship with China, to bring all three countries to co-develop, not just fighter programs, but also other areas of strategic military weapons and support industries. A triangular alliance between Pakistan, China and Russia is destined to grow stronger, bring these three great nations together and empower their economies, as well as their military power.