Mainspring question follow-up for GT

[G.T.]

Hi Don & 4 scale! I just now saw this thread! And 4 scale has pretty much described the issue and cure as it came to be! This particular Luger was as hard to diagnose as I believer they will ever come?... But we just kept testing, tuning, and trying until we were satisfied with the reliability level desired... The springs in the chart are all over the place, but I think one would find very similar compression rates at a certain point of deflection?... As both wire dia. and number of coils plays a part in it's performance... I only use WW target 115 grain ball in every test, every time...... Lugers were mass produced, but not necessarily made with 100% interchangeable parts..it makes testing hard, because you can't always switch out components and get the results you expect or desire??? That gun was a lot of fun to try and solve... I think we did pretty good with it.... ... Best to all, til...lat'r....GT