My G19 needs a 4.5# Wolff striker/FP spring. Since Wolff is having long delays in shipping, I was wondering whether anybody who purchased their spring tuning kit (4.0, 4.5, and 5.0# springs) might have ended up with an unused 4.5#. Or maybe somebody purchased multiple 4.5 springs . . . ? Or, if anybody knows of a dealer that inventories this spring or their 30290 spring pak, let me know. The 4.0# spring is available multiple places, but I haven't found the 4.5.