Question for Sea Eagle owners

I own a Sea Eagle SE-9 and I love the thing but I always have one issue when it comes to setup/storage: it won't fit well in a huge duffel bag/suitcase.  I have an enormous bag that should hold it but I can never seem to get every last bit of air out of the thing in order to roll it up so that it will fit, when I had an SE-8 this was not a problem but since I upgraded for free (long story) I can't get the thing in the bag.  Does the Sea Eagle bag that they sell on the website hold the boat comfortably or is it still a pain to get it in the bag?  If you are using a different bag what type is it and how do you fold the boat?  I am only talking about the rubber boat itself, not the floorboards or anything like that.  

Thanks.