actually we did try cc for ds1, at about 8mths as everyone told us to, we did exactly what they said and went in and settled him every 2 mins etc, after about 30-40mins of crying he vomited, at which point we realised it was crap.
it doesnt matter that babies cant remember most of their brain and nervous sytem development takes place under age 1 and prolonged crying doesnt help that.
"A policy statement on controlled crying issued by the Australian Association of Infant Mental Health (AAIMHI) advises, "Controlled crying is not consistent with what infants need for their optimal emotional and psychological health, and may have unintended negative consequences."
"There is compelling evidence that increased levels of stress hormones may cause permanent changes in the stress responses of the infant's developing brain. These changes then affect memory, attention, and emotion, and can trigger an elevated response to stress throughout life, including a predisposition to later anxiety and depressive disorders. "
"when a baby is upset, the hypothalamus produces cortisol. In normal amounts cortisol is fine, but if a baby is exposed for too long or too often to stressful situations (such as being left to cry) its brain becomes flooded with cortisol and it will then either over- or under-produce cortisol whenever the child is exposed to stress. Too much cortisol is linked to depression and fearfulness; too little to emotional detachment and aggression."
this is from an australian website, anyway if your babies only 'grizzled'for a few minutes then obviously they would be fine, we are debating babies that are left to cry for long periods and on a regular basis which is what cc encourages, and it does happen to lots, i have numerous friends who tried it and parenting forums are full of people who do it and discuss how long their babies cried for, if as you say your babies didnt really cry, they only grizzled for 3 mins for a few nights fine, i am talking about cc where babies are left to cry for long periods of time, up to an hour etc and it doesnt always work in 3-4 days and even then its reported that when baby is teething or has a developmental spurt it stops and needs to be done again (or not as the parent decided)
"One of the arguments for using controlled crying is that it "works", but perhaps the definition of success needs to be examined more closely. A recent Australian baby magazine survey revealed that although 57 per cent of mothers who responded to the survey had tried controlled crying, 27 per cent reported no success, 27 per cent found it worked for one or two nights, and only 8 per cent found that controlled crying worked for longer than a week. To me, this suggests that even if harsher regimes work initially, babies are likely to start waking again as they reach new developmental stages or conversely, they may become more settled and sleep (without any intervention) as they reach appropriate developmental levels."
you dont think it harmed your children and given they barely cried at all and you are i assume anotherwise loving parent i would say you are right, but for some babies the point is it may be harmful and as aparent i would want to know that before embarking on trying it so i could then decide if it was worth trying, we did think it was worth trying, but decided after one evening of 40misn that actually NO it wasnt worth the obvious distress to our baby, had he merely grizzled and gone to sleep within 5 mins i may think differently.