Trasmission is stretched/slowed down. It was not created at 110 BPM, but at around 135 BPM. That is not a matter of interpretation. When samples are stretched/contracted considerably, you can hear it, as the signature, for lack of a better word, becomes skewed and it sounds unnatural. E.g. the cymbals don’t sound like that unless they are stretched.
Makes no sense for him to create it at 135 BPM before Again, and then release it slowed down.
Also, it uses “instruments”, plugins, effects and samples that were not present in any of his music before Again/the Il Cammino time, and in most cases not available. It might allready have originated as a beat/sample/riff/etc. around the time Again (Gigi Tanz) was created. But Trasmission existing as a fully fledged track before Again (Gigi Tanz)? I simple do not believe so.
Edit:
Another thing. The egg came before the chicken, since chickens evolved from dinosaurs and dinosaurs also layed eggs, meaning the parents of the first chicken were dinosaurs.