I am having great difficulty finding springs close to drawing 42257 - there are masses of manufacturers out there with 1000s of stock springs but finding something that will do the job is proving very frustrating. When I get close to the right one there always seems to be one spec that make it unusable

Has anyone managed to find a source for something that will do the job? I would be very happy to hear about it.
Many thanks
Frank Cox
Argus III G-BCBL
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