I couldn't bare it any longer - today I bought a second Caledonia, witth he new ultegra Di2 12 speed groupset - it's great.
Everytime I go out on tthe Aspero, I love it but then a few days later I go out on the Caledonia and I love it a little bit more.
I'm keeping the Aspero and I'm going to put the gravel tyres back on it, I'll use it for what it was intended - Gravel - also, it'll be my wintter bike.
Hope this thread helps anyone else who is trying to make the decision between the two.
Caledonia for roads and hills, Aspero for winter and gravel, mud, loose terrain.
Good luck