15 wks of dbol is way to long for anyone. I would NEVER do that. At the outside limit, 8 wks is pushing it IMO. I would suggest using it for the first 4-6 wks. Its main purpose in this cycle is to kick start and get you very anabolic and growing in a short period of time. Orals are much more toxic and will cause issues with your cholesterol and liver, especially if you were run them for 15 wks. Also, you can cause kidney issues with dbol, if your BP is too high. High BP is common with dbol since it makes you hold a good deal of fluid. Keep a close eye on that...actually, you should keep a close eye on your BP through the whole cycle. 

Also, 350mg EQ is not going to be enough, IME. EQ is a great compound, but it is more mild and slow to work. the lower the dose, the longer it'll take to work. I would go with something closer to 500mg EQ.