Do it at the one in Cheshire, the lads / lasses thier are great.
It's not a sell sell sell day, when I went it was 30% tarmac 70% off-road, it get you to believe just how good the FL is off road without risking your new pride and joy.
Some of the gadgets don't make much sense until you are crossaxled in a few inches of mud with one wheel a foot in the air. Or desending a very steep hill with both feet off the pedals.
trouble is you will probably end up fighting with the Mrs for who drives, they have been known to let you swap, but will she?