Thanks all. Steve at minitastic has confirmed it'll convert back too.
To be honest the car just feels very, very odd. It seems like it has a lot of vertical movement (not what I'd expect on a supposedly high rate short spring with aftermarket dampers) almost like it actually has low rate springs but then if you hit and undulation or ridge in the road (e.g. change in surface height where our lovely utilities workers have backfilled a road surface after replacing a pipe) then the car feel like the suspension is striking through the body which i guess is not helped by the solid subframe mounts.
Its bad enough that you end up driving it at 15 mph on my village roads and still kangarooing due to the throttle foot coming on and off!