Hyper milling can also be done on prosmatic. I achieved 19.5 from Isb to Rwp once. And while traveling from Isb to Multan, I achieved 20.3 top up to top up fuel. While gauge was showing 19.8 I guess. In 9th Gen, Prosmatic is more fuel efficient than Manual. 
Today I traveled from Multan to Haroonabad and back. Did 448 kms and achieved 18 because of poor road conditions.
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