my experience is that clones that are slightly preflowered ( or begin to pre flower while rooting--it happens) usually lag around 7-10 days behind other not so pre flowered cuts...this translates into slightly smaller, less bushy plants at the end of the veg period if less than 30 days and an almost non existant difference in veg periods longer than 45 days or so...this is just my 4 cents ( allowing for global currency conversions to make sure everyone gets my 2 cents worth as i think in terms of US dollars...lol)