Wow I apologize. Didn't want to hit a nerve or even cause a divorce. NWA has a pretty restrictive 22x14x7 policy (43 inch) policy. I wish it were AirTran which is a generous 55 inch and I wouldnt have any issue at all. Thanks for the information, I am out of the debate.
You didn't hit a nerve. 43"-44" is industry standard. Any bag longer then 22" (and even some 22" bags) won't fit in the bin wheels first. The question isn't if the airline measures the bag, few get measured. The issue is if what happens when your bag won't fit in the bin wheels first.
Airtran doesn't know what they're doing. They have a size limit of 55" but the bag has to fit in the bin. Heavy bags have to be stowed under the seat in front of you. According to a couple of posters some FAs are interpreting that to require all bags fit in the bin wheels in or be gate checked.
Passengers may have grounds to dispute paying to check a bag under those circumstances but are still in the position of having very little time to remove items that shouldn't be checked from a bag.
Look inside the bin. It should list the maximum weight that can safely be stowed. Something like 84 lbs.

Seriously, we just kidd, it's okay, don't run away.
I have never felt I need so much space--but good to know about in case I should find differently in the future.
I just had to order a new Longchamp market bag to replace my beloved fig coloured one which is getting a little worn at the corners and a little stained. Of course, it has been in use almost every day all around the world and it has seen many of the sames wonders I have seen. It doesn't get babied - it is expected to work hard. And my (German) Titan laptop case looks as new as the day I purchased it at the now defunct Hertie in Munich.
if said 27" bag that conformed to the 55" stated on the Air Tran site and had to be put in sideways...thus using up the space of 2 wheel in carry-ons.... but was being used by 2 passengers and between the two passengers, there was only the one carry on AND it wasn't so heavy that the passenger(s) needed to ask the large man sitting in the row behind them to help hoist into the overhead bin ... would that still be objectionable? 

First of all, some airlines are onto you
as I noticed this while checking Martinair's policies for my flight on Staurday:
Do we all have to wait for you to move everybody else's stuff around to accomidate your bag? And why does my stuff have to be moved because you did not follow the rules?
most seem pretty cool though). Bavaria is not the only source of the good stuff