I know what you mean Gill, but we've gone that route on a few occasions and my wife [Accent=CorseNewYork]
Cyant Styand It [/Accent]

For 'sequence dancers' we do pick it up dead quick (while many around are still struggling), and although they do seem to get a bit more advanced they don't tax the brain.
My dad did ballroom but wouldn't do sequence because he didn't want someone else telling him what steps to do

So I learned all the sequence ones dancing with my mam (and most other females in the club).
strep98 - it took a bit of research to 'find' you, and I realise I do know you a bit better than I thought - but you don't tend to talk 'dancing' with a girl who seems to havea fish-tail instead of legs
I've probably said it elsewhere, but I was never a dancer's dancer - no solo competitions, etc. What I could do was keep a sequence of steps in my head and move in the right direction (while at the same time speaking the opposite steps for a partner - which my wife still doesn't know how I can do). Since there were so few male dancers I was 'persuaded' into the Old Time Formation Dance team, and we did lift the British Championship a couple of times at Blackpool. Even got onto one of he 'Come Dancing' episodes, but we were up against a Latin team, and the 'flash' always wins over the better footwork and style
There should be photographic evidence somewhere, but I've got no idea where.