I'm of 2 minds with a Quick spell. The first being that if it's only DA, it should be like 10%. On the other hand, if it's a rolled up ball of DA/TA/QA, then you can put numbers like 5% for each. In the case of the former, you'd be at 20% with /WAR, and things like Brutal and Atheling can bump you up to 28%. Since both weapons could DA, we stand a better chance of finally antiquating Joyeuse for other weapons. Any other sub, you'll be 13/5/5. I may be mathing wrong, but for every 100 attack rounds single-wielding, that'd be 138 potential attacks while the more DA-minded route would be 128. You'd have some WS carry-over, but the big boys should still better in the long run.