I'm liking that 722. It has a lot going for it. As mswiz says, 722 fell on 7/28 in 2012. It also fell on 7/28 in 1994
So we have 722 falling on 7/28 twice.
07/28/1994; Night: 7,2,2
07/28/2012; Day: 5,5,4; Night: 7,2,2
What else? Well, 722 syncs TWICE with 712 at 9 days and otherwise backchecks nicely (see below). The only test it didn't pass was the one-hop backcheck.
As always, the current numbers are the leftmost column and the columns of numbers get older as they go to the left.
302;688 | 969;228 | 879;102 | 688;587 | 679;600 | 027;408 | 670;622 <-688
629;928 | 733;557 | 056;314 | 307;436 | 629;518 | 350;695 | 495;755 <-629
772;811 | 388;995 | 687;704 | 034;802 | 300;298 | 905;521 | 612;014
583;425 | 561;487 | 928;750 | 421;645 | 813;758 | 131;411 | 685;648
372;492 | 377;387 | 731;323 | 233;878 | 192;417 | 853;160 | 900;283
288;051 | 799;831 | 587;968 | 698;037 | 579;550 | 560;712 | 505;041 <-712 two days early combined with the below repeats of 712
487;147 | 127;657 | 567;899 | 021;444 | 863;000 | 279;413 | 376;018
397;712 | 116;712 | 118;071 | 416;499 | 485;100 | 713;230 | 712;213 <- note the near-miss with 713
289;233 | 038;085 | 943;385 | 325;449 | 906;948 | 074;278 | 561;201
363;253 | 769;811 | 860;473 | 902;811 | 711;428 | 277;978 | 938;944
071;655 | 604;118 | 577;102 | 268;945 | 373;243 | 994;482 | 707;897
688;515 | 244;009 | 554;284 | 673;665 | 351;907 | 580;537 | 760;520
529;159 | 961;359 | 880;899 | 481;348 | 413;331 | 537;259 | 763;553
898;312 | 551;141 | 959;311 | 326;491 | 899;876 | 971;044 | 957;551
630;846 | 241;660 | 413;846 | 519;076 | 243;854 | 089;729 | 136;992 <-846
081;308 | 372;576 | 864;557 | 386;333 | 075;203 | 180;497 | 469;399
TU28 | 722;647 | 554;722 | 457;722 | 722;056 | 722;067 | 722;636
Note the cool two-day-early sync with 712 and 722. Remember me pointing out that is a hallmark of these syncs? They hit a couple times, then show up a couple days off (usually two days further off as is the case here). The next time is the one I try to hit and that means 722 today.
EDIT: After I posted, I noticed that Wheeler has 72 right in the heart of his +22 workup above. I like it!