Thanks! Actually I tried putting the two weak springs together, but they make a slightly larger circumference than one spring does, so they tend to stick in the spring well and prevent the follower from going up all the way. I bought the new-in-the-package magazine for only $17, including tax, so I think I'll wait until they get another one in. One spring, with shipping from Wolff, is almost $15, so not really economically feasible.
KJH