I've just had another great little ride with my 6 year old. A flat 6-7 km on gravel and concrete paths. Again I was impressed at the ride of the long wheel base and springiness of the front fork, which acts like an almost-vertical half leaf spring. But the bike is heavy, and this weight is mostly in the wheels, i think. When I had the frame apart for painting I was amazed at how light it is. But those big heavy wheels at each end combined with the long wheelbase, give the bike a large polar moment of inertia, making turning a leisurely affair, this not being helped by the shallow angles. But it makes for a very nice ride, even over bumpy gravel and tree roots, etc.

I have also cut off about 9 cm of bar end which really helps.
But I need a Major Taylor type of stem, as suggested by my compatriot Gnome. Nice one on ebay for 60 GB pounds. That is $150 of my monopoly $$