I have fired up everything I'm going to have for the race as of today. I have made some changes, so I'll have to see how that works out.
1.) Had a triple 980 box and a triple 980Ti box. One Ti was hitting thermal limit and throttling so I swapped it to a better position in the 980 box, and moved the 980 (blower fan) to the 980Ti box, as it is designed for the tight spacing. Same driver is used for both flavors of cards, so no issues with having mixed cards in the same box (so far).
2.) I disabled HT across the board, to give as strong a core as possible to each GPU. My WCG output has already suffered, but the points pale in comparison to GPU work (if it actually helps, too early to tell at the moment, but I think it is helping).
3.) I am experimenting with the Configure/Advanced/Cause Preference setting. No one wants to get a 9210 workunit during a race. I am currently testing the Alzheimer's preference.
A previous 24 hour 'all in' test netted me 6,350,669 ppd. It's going to be interesting to see how the above changes affect my ppd. (24 hours is hardly enough time to get a true average, but was too hot outside then to run for a week).