for all mtn?!?! that thing is SOOOO soft. if you wanna wide boot, check out the Dalbello protons and reflexes. technicas have crappy flex in my opinion, expect shin pain. go to a bootfitter tho. internet doesnt work for this kinda stuff/
tecnica vento series (8 or 10). if your foot is especially wide try the HVL fit in the Ventos. If those are even tight, try to find last years Salomon Performa 8. It's softer than the Vento series, but it's a fucking bucket inside.
Depends on how wide "really wide" is. I've got a 13EEEE and the only thing I can get my foot in (that's available where I'm at) is the XWave. Another problem you might end up with is that the front is wide enough and then the heel is too wide. Find a good shop with a good boot fitter.
Lange is not that narrow, their freeride boot is more of a medium wide fit. As said before i would definatly check out the beast, sick wide all mountain boot. Foil is wide but super soft