Righto, went to visit a LBS/Salvage/Recycle centre today.
Was thinking of getting a drop bar and stem combo for my folding bike (Pinnacle Journey 1.0) to improve reach etc.
LBS told me it was a bad idea, that it would make the ride twitchier than it already was and possibly more unstable. I thought it would be better as more of my weight would be forward over the front wheel somewhat. It was explained to me that this would not help as it would add another fulcrum or something like that.
Anyhoo, got to ride a Raleigh Boardwalk Lite (modified to run a gazillion gears) and was surprised at the difference. It was much more stable than mine, not in any way twitchy to ride or steer and felt solid overall. I must say that I'm impressed by the bike. If all bikes with Dahon licensed technology/built by Dahon/rebadged Dahons are like this then I'll look no further.
I'm now on the lookout for a used Dahon/Ridgeback/Raleigh with the adjustable stem and QR thingy.
All advice gratefully received (you guys have been marvellous) and wish me luck!