I was going to take either test e 250 or test e 300 for 10 weeks and use d-bol 25mgs for the first 5 weeks. I was wondering if there would be much of a difference in using 250 instead of 300? Should I take 250 twice a week? If yes, would 300 also have to be injected twice a week? And how would the gains be for both of these if I injected twice a week. I am 6'2 and 190 I am looking to put on 15 to 20 pounds would this be enough?