I am having similar experience...
Had Koni Reds on the Nb car - and was trying to adjust the back - real pain.
(and turns out my handling issue was a loose trailing arm ...but anyway ...)
Put on some GAZ I had ready for my project car - and very happy so far.
Can literally adjust in 5 seconds - don't even need to take the wheels off....
So can quickly try new settings and dial in quickly.
Ordered a set to replace all on the Nb car.
I also undertstand they are used by the Mighty Mini bunch in the UK (GAZ are a sponsor and these are a "control" item )
http://www.mightyminis.co.uk/ See the Regulations tab
So should be suitable for the "job".
Have yet to try on a road car..... better get back to the garage and on with the project.. so I can !