I've heard this before, but I dont think its been proven. If you got pics to share of a comparison I'd like to see them. :-P
What is proven is that MH makes plants stretch less which can be a good or bad thing depending on strain and grow style.
damn 45days? you got a quick flower'er there. i'm glad you didn't burn out your pump back there. best of luck man, let see some pics when u get a chance.
hey man, lookin good.
cannadential is looking big. leaves look healthy as fuck.
watch that Mk Ultra, i've read alot of reports of it turning into a hermie fyi.
peace