I’ve got the 5.5id old green pole hose, it’s brilliant, but don’t think Alex sells It anymore?
That extra .5mm internal diameter genuinely helps flow!
Shame you don’t stock it anymore Alex?
It was always a bit stiff for the first couple of weeks, but lays flat after that and doesn’t tangle.
Edit - just checked, looks like it’s now labelled ‘5mm’ but on zooming in on the pic, it does say 5.5mm id.
If that’s the hose you’re on about, just give it two weeks, it will soften up and stop tangling eventually!