I got my tomatoes in late this year, but there's lots of green fruits on them now. I've been told to prune them (by several different people) but how much? I can see taking all the blossoms off and have done so, but would pruning further be advisable? Back to the fruit? Or all leaves off and let the fruit remain? Prune all but the best fruits? We are on Denman Island, alleged to be zone 7 or 8.