My testing rig is pretty simple (Just putting weights onto the springs) and I have no maths behind my results so I'm certainly not saying these figures are correct but I'm interested to see if anyone else had something to add that I might have missed. The Longshot Spring which is commonly known to have a load of 2.5KG actually had a load of nearly 4KG. Again, I'm not sure that this is correct but all my others tests seemed to be accurate. I'd like to get my hands on a spring with a definite load to test my rig against but unfortunately I don't. (Maybe someone else can give it a shot?)
I'm thinking I might have missed something resulting in these unusual results but I can't imagine what. Anyone got something to add?