Every rumor or story you have ever heard... throw out the window.
U can sure try it... they are not gonna die from it.. and if u did want to try u better do it at the very end of the grow.. as not to influence hermies
try more of the neighborhood of 2 weeks plain ph-ed water, then thouroughly flush atleast twice in that period of time to disperse all synthetic nutes . if using organic nutes 1 week before and flushing once will do. also at last 2 weeks of flowering stage you should see a potential burst in the size of your buds on a daily basis anyways. i have no conclusive evidence on my own that they will get any fatter with that method but do seem to smell lil stronger . try flowering 2 weeks longer than due date then you will definatly have fatter buds .
thanks everybody for the info,i am still new to this.this is just my second grow.all of my plants are healthy and almost done cant wait to smoke em.i have taken samples he he.i have 3 strains goin rite now 1 white widow 1 northern light x big bud 1 bubblegum.i have stoped all of my nutes and just using water.