I've used 50m of Aquadapter red pole hose on my reel for about 5 years.
So on my reel is about 30m of minibore (I think) and 50m of pole hose. The pole hose literally fits inside the minibore with a jubilee clip to hold. Mostly, I only ever need the pole hose, but If I need extra then there is the extra 30m of minibore to pull out.
The reason I did this is because I have tennis elbow (ruddy painful) and the pole hose is extremely light to use.
Does it get caught as much as normal hose? Yes
Is it lighter? Much lighter and easier (I can reel in with 2 fingers) there's a joke there somewhere.
Does it tangle? Yes but not as much as you'd think and it's very easy to untangle (pick it up and give it a shake).
I just pull up in the van, open the back doors, (fixed claber hose reel), grab my pole (already attached to the hose via rectus fittings) and off I go. I just walk with the pole round the back of the house. You can pull it round corners no problem.
The only problem with the Aquadapter hose is that it never layed flat so I had to be careful across pavements (warning cones out). Other than that never had a split or leak ever. I love using it but that's just me.
Last week I ordered 100m of Gardiners new reinforced flexible pole hose and it's the dogs nuts. I've used about 50m. At the moment i'm loving it, especially as it lays flat. It's a bit new (and needs to be broken in a bit), but I am hoping it's as durable as the old Aquadapter hose. Also you can shut the van doors on it and it still works fine. If you're unsure then just get 30m and add it to your existing hose and give it a try. I've also fitted a new univalve and some lumark fan jets. (Had a bit of a spend up).