at your size you probably need at LEAST a 14 din binding to be safely secured because if you ride your 12 din binding at 10 or so then it is compressing the spring in the binding much more than on a 14 or 18 din binding therefore causing more stress on the binding which isnt necessarily great for the release
please don't give advice when you aren't sure what you are talking about. All that has been suggested so far are Salomon s920(bricks for your feet with a minimum din of 10 which very few people need) and the p18(a small, close proximity heel screw pattern that has been known to put out of elizabeths and bacons). The px12 actually has a better screw pattern and a din of 10 or 11 is more than sufficient. Yah.
indeed although like a said...it is better to ski a 16 din binding at 10 than a 12 din binding....i'd say looking into jesters. they have a 6-16 din and a pretty bomber drill pattern