Do you have a dedicated partner who you play exclusively for high scores? Or do you play with randoms, either by hosting or join somebody else game?
I'm beginning to find that playing for high score with randoms is a bit like winning a lottery. Or likewise, finding a decent partner to play for high score. Too many players, I encountered rage quit or don't know that Time Bonus + skill, means the person who equip the skill, must only break the time bonuses, delaying the hidden boss for the 150th kill etc.
I've seen some YouTube duo videos, and to my understanding, they all pretty much play with their dedicated partner. They don't play with randoms and that is how they were able to obtain high scores or break their personal scores.
If I am recording videos for my channel, then yes, I have dedicated partners.
For high scores, my dedicated partners and PSN friends are my first priority because its nearly hard to get high scores with either the randumb person who burns his or her magnum on a regular zombie OR the person with the high score who rage-quits if the combo or secret boss dies on the first try and fail to realize that holding certain bosses (specifically Napad on Urban Chaos) is a pain in the...
If I want to practice other possible Merceanries mains or just want to "Play for Fun," I'll join a random lobby.
http://www.youtube.com/platinumphalanges - My Youtube channel. / PSN: PressStart101