I watch lots of videos. Over and over. Then I look at them in the flesh. Then I give the #s I like to my trainer. We both have to like them. I usually buy just 2 maybe 3. I have learned to cross off all Winbak yearlings. Why ?? They wait until very close to the start of the sale tp put them up. By then I have enough sorted out to get what I want. By doing that it makes my selections much easier.