Trust N Luck and Booklet are NOT by the same sire or even sire line. Booklet is by Notebook, Trust N Luck by Montbrook. Notebook's sire was Well Decorated, a speed oriented son of Raja Baba, himself a son of mixed influence Bold Ruler. Montbrook is by Buckaroo, a son of Buckpasser (by stamina influence Tom Fool)out of a No Robbery mare. Additionally, Trust N Luck inherits stamina from his broodmare sire Dahar, a turf marathoner by Lyphard out of champion Vaguely Noble mare Dahlia, while Notebook inherits more speed from his broodmare's sire Bob's Dusty (a son of Bold Commander, again by Bold Ruler).

I think Trust N Luck looks a lot more like Spend A Buck, Holy Bull and War Emblem than he does Booklet. He might just be a freak.