My son bought some Tyrolia LD12 bindings to go on a new pair of all-mountain skis. They haven't been mounted yet. He's quite solid (97kg/213lbs and 6ft) and using one of those online Din calculators (a Salomon chart) he should be either 8 (if we say he's a Type 2 skier) or a 9.5 (if Type 3). I vacillated between the two types because although he's beyond intermediate level, he's not (at this stage anyway) really a very hard charging, cliff-jumping skier. (Having new, well-fitting ski boots might change that though.)
I guess my question is: is a binding that goes up to 12 going to be solid enough for him, or should he consider something that goes up to 14/15 instead to be on the safe side, and to avoid potentially having to drill another set of holes in his fancy new skis?