Splendid idea, Jim.
How about it, peeps?
I suppose a "one size fits all" due to the particular characteristics different people / guns would require or need would be tricky. But maybe one that would suit a good variety of many of our favourite springers.....TX, LGV, LGU, 77, 95. 97 and 98 might be okay. Produced at a length to suit the longest requirement with just a little shortening to suit other applications?