I hear you; I have a Gen 2 locking block in my 92D, and with some 11K-12K rounds through the gun, it's perking merrily along; BUSA has recommended that I soldier on with it until some problems occur. However, they're recommending that the the revised, improved trigger return springs be replaced every 5K rounds (which I actually recommend be every 5K triggerpulls-the same wear is imparted on this spring whether it's live or dry fire). Arguably the best of the trigger return springs available is the Wilson Combat chrome silicon one https://shopwilsoncombat.com/Wilson-...oductinfo/750/ which at $4.95 for a lifetime spring isn't liable to break anyone's bank here, I suspect.
The triggerbar spring and slide lock/release springs are probably good to go for quite some time-I've literally (and surprisingly) never experienced, or heard of a triggerbar spring breaking. Ditto with the slide lock spring. I still tend to replace mine either annually or every other year, depending on how hard I'm using my 92D in a given period. Les Pepperoni's advice on the thread is probably the best, as he uses his 92s heavier than I do.
Best, Jon