Personally I just feel 2lbs 6oz is too light for an adult bat, so would always suggest looking at something a touch heavier and leave more in the bat.
However, I will obviously do what the customer requests. I also find a lot of people use bats which are an oz or two heavier than they believe them to be. When people request really light bats I sometimes ask them to check their current bats weight and a lot of the time it's not what they believe it to be.