Ive got a set of Spax adjustable shocks on mine and as per MrT says its easier to adjust them out of the car.
I did make a couple of C spanners
http://www.madabout-kitcars.com/foru...t=4861&page=23 which at a push allow adjustment in the car but to be honest its still a pain so i set mine up on the bench in a vice.