Board Thread:Game Discussion/@comment-10287686-20130606010926/@comment-9099835-20130607155910

I am also in the camp that thinks rates were slightly improved for R3 and R4 cards since the start of this event. I have opened up hundreds of gold medals, and I definitely see more r3 pulls per 50 than before. I have cashed in at least 500 gold medals so far, and gotten two r4s (Episode Ramjet and Elite Bumblebee). Before this event, I would have to cash more like 2000 medals to get an r4.

You say luck of the draw, but the r3 increase makes me think otherwise. Before, I got up to maybe three r3 cards per 50 medals. I have been getting 5-6 consistently this event.

My guess is that with the introduction of r5 cards, the rest got slightly better odds.