It turns out that the 305 Sync hit was on 869 and it has a chart with a twist that looks like this:
Now | 2011 | 2006
03/01/2019,869,609 | 12/04/2011,609,869 | 05/10/2006,869,525
03/02/2019,840,627 | 12/05/2011,971,719 | 05/11/2006,072,613
03/03/2019,212,686 | 12/06/2011,824,461 | 05/12/2006,958,260
03/04/2019,687,301 | 12/07/2011,893,055 | 05/13/2006,927,571
03/05/2019,898,543 | 12/08/2011,316,513 | 05/15/2006,268,869
03/06/2019,912,980 | 12/09/2011,063,615 | 05/16/2006,194,037
03/07/2019,119,385 | 12/10/2011,614,229 | 05/17/2006,968,731
03/08/2019,373,846 | 12/11/2011,150,539 | 05/18/2006,603,956
03/09/2019,555,511 | 12/12/2011,509,665 | 05/19/2006,189,109
03/10/2019,340,237 | 12/13/2011,371,958 | 05/20/2006,752,825
03/11/2019,008,982 | 12/14/2011,203,298 | 05/22/2006,044,249
03/12/2019,078,218 | 12/15/2011,314,082 | 05/23/2006,564,843
03/13/2019,724,271 | 12/16/2011,136,657 | 05/24/2006,290,762
03/14/2019,828,802 | 12/17/2011,773,515 | 05/25/2006,837,392
03/15/2019,493,406 | 12/18/2011,147,637 | 05/26/2006,431,849
03/16/2019,885,875 | 12/19/2011,741,416 | 05/27/2006,148,848
03/17/2019,728,943 | 12/20/2011,067,719 | 05/29/2006,566,887
03/18/2019,713,650 | 12/21/2011,647,318 | 05/30/2006,321,705
03/19/2019,035,448 | 12/22/2011,377,100 | 05/31/2006,246,853
03/20/2019,137,791 | 12/23/2011,588,114 | 06/01/2006,129,600
03/21/2019,254,925 | 12/24/2011,489,280 | 06/02/2006,406,913
03/22/2019,310,712 | 12/25/2011,377,925 | 06/03/2006,311,996
03/23/2019,089,243 | 12/26/2011,345,432 | 06/05/2006,775,513
03/24/2019,456,521 | 12/27/2011,767,349 | 06/06/2006,878,450
03/25/2019,782,741 | 12/28/2011,968,690 | 06/07/2006,827,031
03/26/2019,158,991 | 12/29/2011,112,498 | 06/08/2006,645,158
03/27/2019,558,794 | 12/30/2011,548,292 | 06/09/2006,293,941
03/28/2019,019,305 | 12/31/2011,735,305 | 06/10/2006,305,739
So, this sync wasn't within that 7 - 23 day window that I focus on and it didn't have that recent build-up that I want to see, but this this sync had that double-sync on 158 that I didn't notice until this morning. I wish I'd seen that yesterday when I was first looking through the report. Oh well, on to the next...