If this is your first go round with dbol, I'd start lower. Try 20 mg for the first week or two and then go to 25 the next week. see how it feels and how your body is responding both in gains and sides. I have seen great growth on 20mgs and you might also. I just think you should take a few weeks to find the lowest dose for optimum growth/sides balance b/c this will make your dbol experience more positive and will allow you to gradually increase your cycle volumes so you aren't crushing your liver by the third cycle. Dbol is a powerful tool for bulking and you want to get the most out of it your can. I think find the low edge of you effective dosage and riding that line is the best move especially when stacking. By combining the dbol/sust. I'll bet 20-25 will be more than sufficient, I saw 18lbs in 4weeks of sust./dbol with just dbol at 20mg daily for the 4 weeks and sust. @500mg starting at week 3. Still gaining now though I've switched to tren and sust. Less is more bros b/c this is a marathon not a sprint.