Markoz wrote on Dec 13^th, 2011 at 5:07am:

It means more work and probably a far more complex ACE to do it. I guess we can't have everything we want unless we do it ourselves. :-/ Mark

Good point. But, its weird, because I downloaded a FedEx livery for the -100 a while ago, and it always had the later engines. I checked recently, and it now has the earlier engines...