Need advice on which one to sign up for this year. It will be a donation to the IM Foundation either way but have finally narrowed it down to those two choices. Thoughts, feedback appreciated. Have gone back and forth for a while and have pros and cons for both.

Excited to go to Colorado, never been, lots to see and do afterwards and make a family vaca out of it, but also never trained or raced at altitude.

Sort of familiar with Chattanooga area, still no bike or run courses made official yet. This would be a go and race and come home, kids are back in school so no vacation after or before.

So what says Slowtwitch , you decide!