That's it.  I've been sitting in a dark corner for a couple of days, and the urge has almost gone!  Mind you, if the RC had been for sale 'oop north', I'd probably have had a look. 
 
 It does seem a bit expensive now RSF - but it wasn't when I posted the link.  (..and no, I didn't mean selling my SP!!  Nothing would tempt me to sell this bike - but I've a Strada too and it's standing idle most of the time). 
 
 Ah well, I'll take consolation from its dual-seat facility.  (Got to have somewhere to put the girlies now and then..!)
 
 Steve