They might be similar, although all of my springs are Wolf...as suggested by various Glock competition shooters. Even my Glock smith likes the Wolf springs.
Not sure if this helps you...
I saved match books that go back 17 years. that include over five different kind of shooting games
This one for the Pro- Am is one of the very best. It beats the books from the Sporting Clay World shoots that had near over 800 shooters
Very nice indeed...
Had a stage over the weekend with soft cover, and there were a few different ways that shooters could engage the targets . Very interesting to negotiate and "lots-o-fun" too