***Little Spoiler Alert***
<img src="http://www.ipadforums.net/attachment.php?attachmentid=27747"/>
I finally got the last piece for stage 3 was able to finally Summon the Legendary Kairos. I was stuck on the last peice "the neck" for about 28 hours, consistently racing and racing, oh, and did I mention more racing! I got to a point this morning when I was really close to buying the 150 gem piece, probably about a dozen spins away. I actually saved up 75 gems just from racing. It was a huge mission to get him, but let me tell you, he's a beauty. I love what BFS has done with this gorgeous dragon. A lot of races to get him, especially on the final stage 3 piece, but since im a DV addict, it was well worth it.
(tiny spoiler alert)
Before activating Kairos for the first time, breed some eggs, start some habitats if u need/want more, and do a coin sweep of your entire park - it's more beneficial
Good luck to all those still racing and racing, have patience, the pieces will come!