George,

Hadn't known that about the props on the DH88. (Sort of ties in with
the seeming proclivity of British engineers to make things as complex
as possible g.) That could get interesting, especially back then
when the designers seemed to like little bitty vertical stabilizers and
rudders. I also wouldn't much care for it if I had to make a go-around
in coarse pitch when very slow. Differential activiation of devices
that affect yaw and roll are usually just disconcerting rather than
dangerous, but I can't help but wonder how many Allied pilots were
saved because the slats in the Bf-109 usually wouldn't deploy together
when turning tightly, and would throw off the pilot's aim at least
briefly.

All the best,
Rick