2 on 4 off questions please

In my last post I said I was interested in using 400 mg/week of Primo. Bill Roberts said that he recommended a gram to a gram and a half on the first day. He said using Primo wouldn’t be very efficient. In order to get the recommended dosage on the first day how would I do it? I couldn’t take 10 shots that first day, so what would I have to do. Also I wonder if there would be a better drug to use or more cost efficient. What kind of gains could be expected from a cycle like this. One gram on the 1st day, followed by 200mg every third day for two to three weeks. You can refer back to my old post named “Safe Cycle.” I could really use some help. I’m really interested in using this 2on 4off cycle but need finishing tips. Thanks everyone.