Ill tell you how I do the adjustments with a spammer wrench. Probably not very popular here, but this is how we did adjustments at a NASCAR shop I worked at years ago for ease and not to screw up the Finnish. So first, got to make sure all the gunk possible is off the shock threads and in between the locking rings. Then, spray some Penetrating/lubricating oil on the threads and In between the lock rings. I prefer PJ8 but others will do. The next is key and not the normal what most folks do. After the above is done and soaked for a bit I suggest to remove the shocks and carfuly drape a rag in a vise (so u don’t scratch the shock) and Secure the end (where the bolt would go in) to the vise. This will get you a better working area and more ease to unlock and adjust the shock, your odds of scratching the hell out of them greatly diminishes and to adjust them will be much easier. You can try the popular way of jacking the machine up till the tention is just off the shock but your limited to space and sometimes difficult to know if the tention is truly off and you’ll be cussing a bit. Hope this helps.