Replying to Bindings for Nordica Soul Rider

Hey guys, recently got some soul riders for all mountain stuff. I'm kinda stuck on bindings. I have some Rossi Axials that have treated me well on my Seth's but they are about 6 years old now, but they have a 100mm brake. I'm looking at some of the kiwi pivots as well. What are your thoughts, $300 is a lot of money, when I have a set of bindings I like. Also, the kiwis have a 95mm or a 115mm brake, if i do go that route should I just bend the 95s to 97? I'm a smaller guy, 5'10 140#.