Welcome to the group -- glad to hear you're enjoying your #9. I tend
to do more tinkering than sewing as well.
Your spring: I was looking for something else in the group archives
recently and came across a thread discussing using a Singer spring as
a replacement. It's not quite a "drop in" replacement, I think,
because it's wound in the opposite direction from the W&W spring. But
apparently it works, and there are pictures. If you have trouble
finding the thread(s) I'm referring to, let me know.
I have a #9 whose spring is mis-adjusted, and angled such that the
thread won't pass "under" it, but instead keeps jumping to the side.
But in my experimental sewing, it sews just fine, even though the
spring is doing nothing at all. So you shouldn't let your missing
spring delay the "first stitch" event. :-) I'm sure the spring is
important -- it's just not critical.
paul
=----------------------
paul fox, pgf@... (arlington, ma)