PAF should seriously step up production of JF17 block 2, and replace all Mirage and F7PG by 2017, Block 3 should be equal to F16 Block 52 other wise it would be waste of time and money of tax payers, block 3 should use single dual seat version like MIG35 add extra fuel tank to increase its range, and keep cost low. 2 new hard points would have been big improvement in block 2 under wings or under intakes for pods, I don't consider block 2 to big improvement to designated as block2, their was still room for improvement, in engine performance, PAF should produce WS-10 or WS-13 for JF17 thunder in Pakistan for complete self reliance.