Well any binding will work for you, technically. It doesn't matter how tall you are or how big your foot is. If you ski super aggressive or are in the park a lot, or weight 200+, I think a binding with a slightly higher DIN is better. If you aren't any of these things, then yeah, good binding for you man.

With the Invaders, you can grab the 90 mm brake option of these, and you should be alright. If you are an aggressive skier, a bigger guy, or throw huge in the park, look for a binding with a higher DIN setting than 12, maybe 14 or 15.

i actually bought z14s. having said this, i am able to say that if the z12 is even half as good as the z14 (i only has a higher din setting) , you are in for a great binding. never sad with salomon products thus far.

Any brake would have to be bent so the 115mm would work.

Nope, Backcountry doesn't do mounting.

The Lord is 87 underfoot, so the 90 should give you enough room to accommodate them. Hope that helped.

If the waist of your ski is between 90 and 100 get the 100mm, If the waist is between 105 and 115 get the 115,

The STH 12's are way better when it comes to shock retention and feel, but the Z12TI is super light

These will fit on any ski not only salomon, they are good bindings, but if you ski hard they will break, my son who weighs 140lbs broke a pair in the park, and i had problems with the toe piece on a pair of guns. but if you cruise groomers and don't ski to hard they will work ok. If you like salomons the STH 14 or 16 are excellent as are the look px's or rossi sas2 or axial2 bindings.