How hard is it to change the springs to a Wolff upgrade kit from Brownells?

small fish,
It's a piece of cake if you know your way around a Smith. If you don't I would suggest you take it to someone that does and observe. The only real problem is when you take the rebound block out. If you don't contain that spring as you ease the block out it will fly to Lord knows where and when it hits the ground it grows 8 tiny little legs that instantly carry it to the deepest darkest corner of your garage/gunroom and more often than not it will never be seen again. They are just incredibly fast when they land on the ground and hit their full stride. Jim

small fish: Smiths have relatively simple mechanisms. If you have some mechanical aptitude(see how things come apart and go back together just by looking at them) and a few small tools, you can do it. As was mentioned already, the trickiest part is changing the trigger rebound spring. If you would like someone to walk you through it, I'm willing to try. Send me an email directly to this address: awilliam@bright.net. I'm having trouble learning to use the email function on this forum and I don't have the time or patience to fuss with it.