Replying to Touring boots that still perform well?

Im looking for boots for my new touring skis with a cast system, I'll send my dalbellos in to get inserts so i can use those some, but i plan on getting a more lightweight touring specific ski setup in the future, so i figure i might get a boot thats a little more focused that will perform better for longer distance more serious touring days.

I'm new to these boots so i dont know much, i know they make some seriously lightweight boots, but so long as i can make it up comfortably and somewhat quick ill be happy, im more concerned how they actually ski.

I've got a wide foot and have had to stretch my il moros and full tilts to fit.

any recommendations?