To be fair, cruor chain parties actually require some concentration and communication to keep going, and don't generally benefit from more bodies. Maybe I've just run into bad luck/am terrible at this game, but if I'm specifically targeting cruor I tend to do way better solo than even with one other person working through another camp. More cruor is good, for sure, but I'm totally 100% satisfied with 30-40k an hour from worms if it means I don't have to pay attention.