I've been following this quite closely, but only commenting occasionally.
There are two things baffling me at the moment. The phone stopped pinging at 8am near BM, but did it go to Ely and Soham, as the the bin lorry did, or did the bin lorry go there after 8am? If the bin lorry went to Ely and Soham before 8am, but the phone didn't, then the phone (and Corrie?) wasn't in the bin by the time it went to Ely. If the phone did ping that route, it must have been in the lorry (cab or back).
The bin weight was so high it was changed by Biffa staff, IIRC, so it seems difficult to account for the weight, other than it being Corrie. That makes Corrie being in the bin and getting out somewhere en route seem a more likely scenario, to me. Maybe I'm over-simplifying it and stating the obvious - sorry if that's the case.
There are plenty of other baffling inconsistencies (eg LE insisting he is not in landfill, then that he is), but the phone and bin weight seem to contradict each other, in the light of Ely/Soham collections.