Yes, Carlsons is on the list of places that I'm planning to try. I've heard it can get quite packed out in the evenings though? Having looked at their site, I think their basics class would be best for me to begin with.
Does anyone know if I can just turn up there in shorts and a t-shirt, or will I need a GI straight away?
Also, does anyone know anything about this place? http://www.bjjschool.co.uk/
The Battersea classes are of interest to me.