When So Happy (c, 3, Runhappy--So Cunning, by Blame) won his first two starts--both sprints--impressively, then yielded when stretched out to 1 1/16 miles in the GII San Felipe Stakes Mar. 7, it could be assumed he had distance limitations. After all, his sire was the 2015 champion sprinter and So Happy had kicked off his own career with a 6 1/2-furlong maiden win Nov. 22 and a GII San Vicente Stakes win at seven furlongs Jan 10 . So Happy ignored both the PPs and his sire's aptitude Saturday,...