[Bud White]

Fitting a Ambi depends how paitent you are file one stroke and try fit etc etc ..

I have the 5 inch lightweight and i really like it gun is holding up very well compared to a 4" i had by another maker I dont think you cant beat a springfield

 

[CLASS3NH]

Lightweight Champions are pretty good. The Ambi safety is fairly easy, just be patient with it, and you'll do just fine

 

[acparmed]

It's an excellent gun and SA has a great service reputation.
A good local 'smith wouldn't charge much to fit it if you don't have the experience.