The Sig 226 is a great gun.
Problem I had was the DA/SA routine. I shot it for a while in IDPA and most always threw the first shot. I dry fired it alot to get use to the DA/SA but could not over come it. I stayed with Glocks.
That being said I got a Springfield Milspec for Christmas and genuinely love shooting it. I hope to run it some in IDPA to shake out any issues. The big question is should I sell a G21 and G30 ?
If you select the P226 stay with it as a sole platform would be best in my expereince.
"Do your duty in all things. You cannot do more, you should never wish to do less." Robert E. Lee