I've heard that people take their whole days dosage in the morning, so that by the end of the day it's all out of their system. This prevents the shutdown of your HPTA due to long term usage, because at night your balls can have a little recovery time!
I know this may hinder gains. So if you are more concerned about gains, split the dosages. If you are more concerned about sides, take it all in the A.M.!
Just my advice...I will be taking anavar for the last 6 weeks of my current cycle. I will be taking mine all in the morning, because I hope I will have made alot of progress by that point. And by then I will be more concerned about the sides, then getting bigger!
Hope this helps bro!
B-10