Growing Cycles

What I would like to do is have a grow cycle where I introduce one new clone approximately every 9 days in order to harvest 1 plant about every 9 days (I have a 6 plant setup and most of my clones have 56-60 day flowering periods...9x6=54 days appx). That way I could consistantly have a plant or two vegging and when they are ready, throw them in my 12/12 room. Is this a good idea or could it somehow be hazardous for my harvest to have all the plants a week and a half apart. Any info would help...

it shouldn't be hazardous as long as you know that each plant may be in a different cycle and to respect that accordingly; im doing a similar grow, but my plants are much further apart
which brings me to:
let them grow at least 14 days apart, since not all plants are the same, and somewhere down the road you might have a really fast / really slow plant

thanks i appreciate the feedback