Spoken to my local bike shop who made a query to dahon.
They say the tt bars are likely to slip with the andros stem.
Maybe but I don't intend fitting both, one or the other, It did slip when I first tried the set, but after tightening up it seems ok , just very firm to close.

LBS thinks 10 speed not compatable due to low tollerace of SA 5 speed. but there is a SA bar ens shifter.
Another idea is going for a Steven Perry front mech mount and 2 or 3 speed brifter, giving 10 or 15 speed that should be fine and not too expensive?? Sp mount around £50 plus campaqnolo shifter and doulde chain set, plus left hand brifter. Sub £200