Hey drew, just checking in for the first time. Don't worry about Break-in meaning to be easy compared to the other routines. I, along with almost everyone else who has posted their thoughts on Break-in, thought it was difficult.
I'm halfway through FLII (did FLI as well), and so far they're all pretty hard. I must say though, FLIIB's superset of Bulgarian Split Squat w/overhead press and chinups is the toughest part so far. Did that tonight, and am noticing that my arms are a little heavier on the keyboard right now

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Anyway, I'll keep an eye on your progress. Any races you're gearing up for?
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"Maybe you're not as fast as the person in front of you, but certainly faster than the person who never started" - John Collins, creator of Ironman.