I use VC RC paper for negatives and for printing. My greatest "issue" is that the negatives are very high/strange contrast. I have heard suggestions to use a green filter (I don't have one or I would try), and preflashing paper, which I am starting to try. But since this is VC paper, could you possibly use the lowest contrast enlarging filter either as an exposure filter, or while printing? Do you use variable-contrast filters when exposing paper-to-paper contacts?