I always wanted to make this topic but due to one reason or another I wasn't really able to make one.
Anyways, over the past year or so I gained lot of knowledge on bats (thanks to all lovely people here and more importantly to this forum) so over summer I met pretty much all of Pakistani contracted players [like of Misbah Ul Haq, Younis Khan, Kamran Akmal, Umar Akmal, Azhar Ali, Taufeeq Umar, Asad Shafiq and lots of new young players] and saw there bats.
Over my stay here I have noticed one thing and thats people rate Pro bats as they have come from heaven!
Having seen few pro bats and owning few myself I can safely assure myself that pro bats are not really different than what we buy from store. Some of the pro bats I saw for example Younis Khan's CA, Misbah Uk Haq's bat and Umar Akmal's GM Flare they were 'big' than regular ones sold in market but then some bats of other players there wasn't really anything different from what we would get in the market. In fact, some pro bats looked horrible [I'm sure if they were to be put on sale on CBF without 'Pro' label no one would buy it] but performed exceptionally well.
So my opinion is that some pro bats are really massive, look nice as we all know but then most are just normal bats like us. It is the player rather than the bat after all.