iv always grown from seed mate
as soon as the seed cracks it go's into a jiffy ph 5.8 then straight into the 15ltr pots and under a 600
hand water a little for a week or so untill the roots are feeding themselves
turn on the autopot and it takes over from there
never had a problem doin it this way.
however im using clones on my next grow for the first time and was planing on potting up
but then again my mates have just put there clones straight in like i do with the seed and had no probs.
hope this helps mate
ps. dont forgett to put a couple of inches of pebbles at the bottom of each pot and an air stone or pump in the res and you wont/cant go far wrong