I havent' heard about the stress factor, not that I'm doubting it...I'm very new as it is, so that's some good info. But what I've done so far is to gently bend the larger fan leaves, that are only directly blocking target sites, below where I want the light to get to. That way I keep the light catchers, but they're out of the way.

I have read at least one article about a succesful grower that does trim very discretionately...for what that's worth.

*junk