I think I've over vegged my first attempt at mainlining as well. I pruned the girls like CRAZY, but I left some under nuggage on the colas to make a crown. THey're only a week in, so I will have to wait and see if I played it right or if I want to adjust for the next try.
I cropped the shit out of them all through veg to keep the canopy moving outward, which I think will work out very well. only some mild bending on the previously cropped sites is all I'm doing from here out so I don't have any concerns in that regard.