"excellent" it's not to anyone who has shot the SIG.
If you "fumble" with a thumb safety you are untrained and should not have a weapon.
Then there is the issue of racking the slide on a Ruger------
The SIG costs twice as much as the Ruger because ----- it's three times as good.
You enjoy you cast 77s, I'll stay with my machined FN Mauser.