Doms d6 dice hack

These are alternate rules for using d6es instead of dF, designed by a mathematician so they don't diverge too much from the dF results. In fact, deviation is in the sub percent range. Thanks to Dominic Wäsch for this whole thing.

Short version: double the ability values, look up results on table after rolling 3d6 + ability value:

Ignore die results of 3 and 18 to have an even better fit.

Bonus and Penalty dice work as normal: add either which weren't canceled out by the others. If bonus dice remain, only count the best three dice, if penalty dice remain, only count the worst three.