I think I may have resolved my MacBook Pro Airport re-connection issues.
I ensured that Airport is at the top of the network configurations and this seems to have solved my re-connection issue when running a pure 802.11n wireless network.
I find it strange that something as simple as moving a network configuration to the top should solve this issue with an 802.11n network. However it is not an issue when running in b/g compatible mode!
Well it’s working for me now.