I understand the Thomson X2 stem was designed to be lighter for road use (as opposed to the X4), thus the 2-bolt system and, presumably, thinner construction.

Would this translate into NOT using this stem with risers (600 to >700mm)?

Does anyone use this stem with (wide) risers? Any horror stories, like the stem breaking, failing, etc, under the extra torque exerted from using risers, as opposed to road drops?

I'm just curious since Thomson tech support told me it should be fine but since there would be more torque, from the wide risers, the life of the stem would be reduced, since it was designed to be used with road bars.

Thanks.