Question about HIIT routine with elliptical

Shaselai

I am trying to get into elliptical HIIT as well and there are 2 programs I am looking at - please review! The first one has more "down time" and the hiit interval is longer (i have read that HIIT interval should be min 10secdson -30/40 seconds). The second one gives minimal rest and changes it up quite a lot i think i need to really "watch the clock" when the intervals gets changed...

program 1:
http://blog.anytimefitness.com/395325-quick-hiit-a-20-minute-elliptical-workout/

Program 2:
http://www.wholeisticallyfit.com/2013/03/07/20-minute-tabata-style-hiit-elliptical-workout/