This is a fun app overall, but definitely hindered by the insert chases. For example, a Rookie Roll Call pack is supposed to randomly contain 1 of 5 different rookies. Ive opened 10 packs in the last week and received 3-4 copies each of 3 rookies. The Panini NFL gridiron app has similar issues. Maybe they are trying to get people to use the in-app card trading more, but it really takes the fun out of collecting when it feels like its rigged.
modestluke about NBA Dunk from Panini - Card Collecting and Trading, v1.6.29