Hi Guys and gals, I need some help here. The slide of my glock 35 cracked on the breach face at the left side of the firing pin hole. Now the firing pin hole is almost 3x the orig. Here's how it happened yesterday: ammo used is 180gr teflon coated .40SW over 5.3gr VV N240 w/ major PF of 171. Ive been using this load for sometime now and its a safe one in terms of velocity/pressure. The only change in my usual setup was I replaced the orig 17# recoil spring w/ 22# spring made by ISMI purposely to lessen the felt recoil. This resulted to higher slide velocity when returning to lock-up. And the portion that will absorb the majority of the lock-up force is the the breach area. After 58 rnds w/ it, the breach face gave way. Some fellow shooters who were present suggested it may be due to metal fatigue and accelerated by the 22# spring. But upon coming home, I check my list of reloaded and fired ammo thru it and got 26,100 rnds more or less total since last nov2003. And about 40% is major load. In my opinion thats a small quantity to cause severe fatigue on the metal. So the culprit could be the spring. So guys/gals, the orig spring is still the best. Anyway, my immediate concern now is to find a replacement slide for my g35. Or a used g35 for sale. I need it asap coz I use this g35 in std div. local ipsc match here. Pls help. Thanks in advance.