Realizing that 12 of the 15 medals won in the shooting part of the Olympics were won with Perazzi's. I didn't see but one K guns... anyone who is no "enlightened" to the Perazzi spring issue is, well, clueless.
Your spring breaks in the typical space. This is where the vibration of the spring ends, that is to say where the spring is statically mounted in/to the housing. That is where 99% of them break, and should break.
The NICE thing about leaf springs is that the DO BREAK. That is the tell-tale sign that it needs replacing-da! I ship Perazzi springs all over the world to shooters, some are big, big time shooters. In fact, in some countries like Australia and South Africa, they shoot their guns so much, I constantly ship rebuild parts to them. They are 100% content in shooting the P guns, and would not change to any other brand, for reasons mentioned herein.
Some of the Perazzi's had/have (can be special ordered) with coils. Problem with the coils is that do ON NOT break; they just get weaker and weaker and weaker. Pretty soon you find yourself missing targets, so then you start changing techniques; gun holds, stance, follow-through, etc. Then someone asks when's the last time you changed them, then you do, and presto, you are back in the groove.
I had this happen to me with my first Perazzi, a TM1, in 1974. Bought it at the Grand after winning some money. Later, I started to miss targets because I shot so fast, the hammer was not hitting hard on some shells. Then one of my Perazzi shooting squad mates asked the proverbial question: <i>"When's the last time you change the trigger spring."</i>
ALL springs lose tension the first minute they are installed, whether it be coils or leafs. To me it's like changing oil, or balancing your tires. You NEED to do that regularly and not because you have to, but because it depends on the use of the vehicle... or gun.
Perazzi's are designed to be shot, and have the hell shot out of them. Then, you can, through design, rebuild the gun to specs. Kim Rhode shoots a 12 year old Perazzi, and that gal shoots 1000 round A DAY. You think she waits until something happens (reactive), or through regular maintenance (proactive).
Some other guns, such as the K guns have so many parts in them, it's a nighmare to even think about it. Perazzi's are simple to repair or rebuild. When you wear out a Browning, you send it into the factory and wait... that is if you've not added a non-Browning accessory. They will not work on any gun that had even had its recoil pad altered.
I just have to laugh when someone say go to a K gun or some other gun because the leaf springs break. They don't have a clue on the gun's successes.
It takes, what, 1 minute to change the spring and they cost a whopping $43.39. On a $10,000 gun, that's pretty negligable. It's like on a $40,000 vehicle, you are hesitant to spend the $40 to change the oil.
Whiz