Having the last 35m as pole hose.... This is a briliant idea!
Out of curiosity, how do you connect the pole hose to the microbore?
And who is the supplier for the fittings?
I use a barbed connector. Metal is more robust. The internal bore is the same or very close. Obviously the clips are different sizes. I would double clip or superglue and clip.
I wrap insulation or gaffer tape around the whole joint so the clips don't catch so easily.
This is the one point that catches if it (say) gets tugged round a tyre or wheelie bin but you get used to allowing for it.
The only reason I haven't gone all pole hose is because I bought a 100m and cut it into three a couple of years ago.
When one 33m length wears out I replace it. I still have two lengths left.
When my main reel microbore has had a couple of repairs or a fatal tear more than a few meters from the end it becomes my second reel and the main reel gets a new 33m length.