Jay,
I bought my Speedmaster 2 and a bit years ago, having not ridden a bike for over 20 years - my last bike was a Yamaha RD350LC - so after just a 6 year break you should be fine
You've done the sensible thing in getting a refresher course. I did a day's training, but only after I'd had the Speedy about a year! I learnt quite a bit, it was very well worth doing.
In my opinion the Speedy / BA is a very good "born-again" bike. Powerful enough to get out of trouble, but not so powerful that it'll kill you as soon as you open the throttle. Very forgiving in corners if you make a mistake, and very easy to handle.
I've just sold mine, and while I love my new bike, I would have kept the Speedy as well if I could have afforded to. I think I'll be buying another one in a few years time when there are some cheap* old models around.
Enjoy it when you get one
*Anyone who's selling a Speedy - Please don't PM me with details, I mean cheap as in £1500 - £2000 cheap, which means I'm happy to wait and pick up a tatty '03 model in about 2009
