I don't mind who I shoot with. I have heard the better your partner, the better your score, but I'm not sure thats true. I think it should be a random selection with the partners from the same club/region removed.
It's good to slowly work my way through meeting and shooting with all the different people at the GP's I haven't had to shoot with anyone I didn't get on with (yet)
Anschutz 2013 MEC1 .22LR
Miroku 3800 12bore