I think this is a typical winterproduction. The mytravel have aircraft left during the winter, so why not operating to winterdestination i.s.o. of putting those aircraft on the ramp and get no money for it. The profits to TFS will be just higher then the variable costs, so it creates cash money (ofcourse only when there is no other business for an aircraft). There is one more thing, the people who travels to TFS on seat only base, must arrange their accomodation by themselves. And the canarics are not the same is continental europe where you can easily book appts or hotels against affordable rates. The only thing that mytravel can do is also selling some seats to touroperators.