Replying to Gotama and binding question

I'm gonna get a new pair of pow/bc skis to augment my current mojos. I'm thinking of going either with the new Mojo 105s coming out next year or maybe this year's Super Mojos if I can find a good deal on em. My other option is a pair of Gotamas. I've found last year's Gotamas for cheaper than this year's and the sidecut is the same and I was curious is anybody knows if the difference is anything other than cosmetic?

As far as bindings I only ride Salomons and always have and have found S916s and S920s. Both have full steel construction the din on the 920s is a lil high for me cause I normally ride with a din of 12-13, is the din the only dif between those 2 bindings?

thanks