User blog comment:Alemagno12/Quick poll/@comment-30754445-20180823131111/@comment-31837178-20180825024254

That's basically what I do. After doing enough comparisons against the FGH, I started to get a good intuition on how growth rates would progress without going through the step-by-step process....or so I thought lol. More than once, a notation that looked like it would break the epsilon-nought level of the FGH got stuck around the omega^^3 level. So I'd definitely agree you need to walk through all the non-trivial steps to show the equivalent growth rate.