One of the biggest mistakes a grower cam make is relying on the amout of days till you harvest or reduce niutes. The best way is to judge by trichomes. I have grown white rhino and they took much longer then 55-60 days, they took about 77 days.I grow hydro. I know how anxious you will get when waiting to harvest but it pays to wait, especially with white strains.In the last two weks you can add up to 25% more bud. Just a personal note I have stopped nutes 10 day beofre harvest and as little as 3 days i find no difference in taste, and the longer you use nutes the more the plant will grow.