POLL: Should More Rulesets Exclusively Use the D6?

GuruDave -- How the modifier affects the result depends on how you quantify it. For example, do you look at how many new successes/failures it will generate, do you look at what the new percentage of successes/failures will be, or do you look at what percentage the successes/failures will change by. Depending on the mechanic and the event being modeled, the best way to evaluate the modifier can be different. More importantly, often in wargaming a modifier is used, instead of a second die roll, when the two factors being modeled are actually independent, meaning that no modifier scheme will actually be accurate for a single die roll, and you're limited to choosing which inaccuracy you prefer.

Chris von Fahnestock -- There's a design consideration that mitigates against summing of dice: speed of play. As soon as you add two or more dice, you can no longer process multiple events in parallel. A better way to get a bell curve distribution while allowing parallel processing is to have two successive rolls of one die each.
--Paul