Why G10 on the SnG/SMF instead of all Ti?
Per Mick Strider:

"The actual reason is that as much as you think it would ‘look’ cool. It’s a less quality knife. We use the G10 because it is rigid as hell. Ti is rather flexible by nature…it moves around quite a bit. The way we mill the G10 it is a solid piece of .390” thick material.

There are a lot of other reasons I could toss in there as well.

Its cold on your skin.
It is less ‘grip-able’."