Contrary to poular belief, 800mgs a week is too much for a 1st timer. The younger generation seems to be used to getting everything quickly without working hard for it. They eat microwaved foods that are done in 2 minutes-where I grew up baking tv dinners in the oven 45 mins. They use a search engine online for 411, where I had to drive to the library, look up a topic in a card catalog, then search through shelves of books to find what I was looking for. Same applies to roids-they procure them online w/ a click of the mouse, where I had to find a trustworthy source in the gym personally-hoping I didn't ask the wrong person and get my ass kicked. Now the norm is also these 1000mg/wk 1st cycles.
I've said this a bazillion times before, and I will say it again now. I grew like a weed on 200-400 mgs/wk for years. It allowed me to learn how to train and diet properly for the gains I desired. These days the inexperienced guys use excess amounts of AS that their body can't use. They also put themselves at risk for getting joint injuries, as tendon strength doesn't develop as quickly as muscle strength does.
However, using higher mgs does eliminate the much of the guesswork involved in dieting/training. If you want gains the easy way, and you don't have the desire to learn how to make steady, keepable, gains over time, and you aren't concerned about wasting $, go with the high mgs. Otherwise I'd say cut your dosages in half and carry on.
I've been around AS 20+ yrs and have used them for 17 yrs myself. I have city,state, and regional BB titles(shameless sucking of my own cock-I know. Just want street cred after I spit my opinion) and I'm in good health. You can choose to listen to me, or one of these new school high mg guys. It's your body, your choice.