Titanium is a lot of things but it is not brittle. They have been usng Ti valve springs in race cars for years. The best mountain bikes have Ti suspension springs. They are as good or better than any steel springs & do it at 45% less wieght. The rub is Ti is 4 times the cost & it is very hard to work with. You can also make springs from alum alloy once again cost is the factor. Springs have been made from almost anything you can think of brass, cooper. alum. Ti., wood, bone, fiber glass, carbon fiber, rubber, plastic. It boils down to what works best for the money. Most guns shoot better than the guy shooting them. I can throw a beer can in the air & hit it 3 times before it hits the ground with my Red Rider. I dont think lock time has anything to do with it.
