Board Thread:Tips, Tricks, and Questions/@comment-183.90.103.130-20130822172716/@comment-37.190.59.17-20140718095351

I'll explain why in some cases people might choose the U spin.

If the chances to get an epic is sayyyy, 1 in 1000... than 3x that would be 3 in 1000, or 1 in 333.

If the chances to get an ultra monster would be 1 in 300, than that times 3 would be 3 in 100, or 1 in 33.

There fore, although they both have 3x the chance to receive an ultra or epic, the chances to get an ultra would still be higher.