1. I have done suspension and the b-12 method works. You just can't wait around to shoot it. Pull the b-12 first and then pull the suspension leaving some air in the syringe. Next shake it like crazy until your ready to shoot. When ready get rid of the air and go for it. BTW, I was using a 21 gauge needle for that. The 18 sounds retarded to use (OUCH!).
2. ANDY, unless you have used suspension it doesn't matter what you read. I am the first to say that using every day is the best way to go BUT I have used every other day and have known many others who have done the same with insane results. But by your theory I should never have gotten past 1 cc of suspension in my system. Then how did I put on 25 pounds in almost 3 weeks with low bodyfat? And many others have done the same. The numbers don't work with real life experience. BTW, twice a day would make him paralyzed from the pain. Especially the first week. No flame bro but experience is the only true teacher.
3. Don't waste your juice. Or your liver. Shoot it. It's bad enough shooting I don't even want to know what drinking the fucking stuff does.