I do have OALD, but it doesn't sound nearly as strong as yours. The main problems we have as a result is that he clamps down to control the flow, and that hurts. Also, it has caused vanoplasty (sp?) of the nipple, it turns white/purple because of a lack of circulation, and gets painful after I nurse. He's also really gassy.
Our lactation consultant recommended positioning the baby so that he has to suck- meaning position him above the nipple, so that gravity is working against him. If he's laying down and the breast above, then gravity is just forcing the milk to flow faster, KWIM? This does seem to help, today I nursed football style, but with him almost sitting up. Also I will recline back when in cradle hold so that his head is above the breast. So far today it seems to be helping.
Another thing she recommended is nursing sidelying, so that DS can let the milk dribble out of the side of his mouth if it gets to be too much.
Also, we were feeding on one side, then the other. Then next time we'd start with the last boob. She suggested feeding only from one boob for 3-4 hours, then switching. We haven't had any problems with DS gaining weight, so she didn't think this would effect his weight/eating.
HTH, I'm interested in what others post...