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Ok so my understanding of wild bay and DP has been completely thrown out of the water this breeding season. I thought A+ was like A or At in that it will only show on black based horses. Meanwhile, I thought DP only shows on red based horses. So by those assumptions, this colt must be DP...
http://hj2.huntandjump.com/horse.php?horseid=201655

He is very dark (and tested Chestnut), so my first thought was DP...and I suppose his sire could be a carrier, but he is also A+At (had no idea his dam was a carrier for At). It could all be a coincidence, but it seems to me that often times dark chestnut horses carry one A+. Here is all of Dark Stranger's foals this season. He is A+A+ so all of these horses have at least one A+ allele.:
http://hj2.huntandjump.com/adv_search.php?status=any&ageg=&agel=&agee=&f_basic=none&f_adv=none&f_limit=25&stallion=1&mare=1&gelding=1&spayedmare=1&name=&name_lm=like&color=&color_lm=like&bty=1&lined=lined&foundation=1&sire=194835&dam=&barn=&owner=&breeder=&e1=1&e2=1&a1=1&a2=1&f1=1&f2=1&p1=1&p2=1&s1=1&s2=1&s3=1&c1=1&c2=1&c3=1&d1=1&d2=1&g1=1&g2=1&ch1=1&ch2=1&z1=1&z2=1&sa1=1&sa2=1&sa3=1&kit1=1&kit2=1&kit3=1&kit4=1&kit5=1&kit6=1&kit7=1&kit8=1&kit9=1&sp1=1&sp2=1&rb1=1&rb2=1&o1=1&o2=1&l1=1&l2=1&v1=1&v2=1&brindle1=1&brindle2=1&patn1=1&patn2=1&patn3=1&patn4=1&patn5=1&patn6=1&wf1=1&wf2=1&wf3=1&wf4=1&wf5=1&wf6=1

Here's another example:
http://hj2.huntandjump.com/horse.php?horseid=160399
Notice this horse's dam is dark chestnut and must carry A+ (sire doesn't have it).

There are plenty of counter examples to this idea though. Maybe I'm just seeing connections that aren't there or I'm just noticing only the subset of horses that happens to carry A+ and DP?


On the subject of confusion, let's look at Dark Stranger himself:
http://hj2.huntandjump.com/horse.php?horseid=194835
He is A+A+ and SstySsty. It was my understanding that wild bay is a more aggressive bay that lightens more of a horse than A alone...but I guess that's not exactly how A+ works. Could someone enlighten me?

Sorry for the rambly post - I just am pretty confused by this whole thing haha.