I am growing 2 winter squash plants, one Red Kuri and one Crown Prince. Both of these are currently making a bid for world domination, being about 16ft long and still growing. They are also producing side shoots. My question is do I just leave them to themselves or do I have to pinch anything out? They have both recently started to produce male flowers but only the crown prince has produced a (one) female flower so far. They are in shade for half of the day and on a sandy soil. Also getting mole hills all around and 6 inches from the crowns, but not (fingers crossed) directly under them yet.