Hi all.
I have a SSA on order, so reading the comments here with interest. I have a heavy Manfrotto studio tripod (028B Triman) which I am hoping will do the job, though in high winds it does tend to vibrate a little - I have used it for long exposure photography in the past.
Just though I would draw everyone's attention to this little gizmo for sale on ebay uk - it allows the polar illuminator to be used with the dovetail.
http://www.ebay.co.uk/itm/Adaptateur-illuminateur-de-viseur-polaire-monture-SKYWATCHER-Star-Adventurer-/131950549764?hash=item1eb8dd9b04:g:gV0AAOSwNuxXaY-N