I see that Luke was a competent pilot in Episode V so why was Han Solo piloting the Tydirium?
So far, I have a few hypothetical reasons:
Luke may not have been a competent pilot at that time.
Solo was a smuggler. Logically, if anyone on that ship could evade the Imperial military, it would be him.
Solo just wanted to be the pilot
Luke did not have much, if any, desire to touch the controls.