flash of insight after ruminating on #2d6 #gumshoe and #iconsrpg :

Opposed 2d6 rolls are a great simple mechanic, but why not substitute one d6 with an attribute, skill or trait level in the range of 1-6? Less swingy results, meaningful attributes, and shifts of success come in a range of 1 to 10 - not to bad of match for d6 hit dice.

I wonder if this would qualify as a rules set in a post?