Is it possible to determine whether a cell/sphere is bad by, having removed it, push something blunt into the 17mm banjo connection. I'd of thought that a good cell would provide high resistance due to the nitrogen pressurization whereas a bad cell will show movement. I just obtained two replacement/used spheres - one sppears bad and the other good - by the above test.

I'm just not sure whether it's a valid test. I've never had the car running correctly to know what good or bad suspension feels like - however, it did seem too jumpy and I've a leaking shock so intended to replace/test spheres.

Steve