Sounds like your living the life I would like :-)I'm lucky that I have a few bikes, all from the 80's.
If pushed, I'd like a ducati 748, a Honda blade (early) and an early r1.
Cb good choice fella
The 400/4 was my first proper bike & it just seemed to suit my abilities (or lack of) at the time, also we lived out in the countryside & it was a perfect size for the twisty country lanes.