Why do you ask so many damn questions?
Just kidding, it's cool.
My process for writing singles RPs is kind of boring. I see who I'm facing, come up with an idea usually within a day or two after the boards are posted. After that I give it a few days to sink in and come up with jokes or plot points. I usually start to write it a day before it's due, and sometimes I finish early, but usually I finish it the day it is due.
For tag matches is a little more interesting, and probably worth emulating if you want to have tag team success. I'll PM my partner after we get the match and talk about the story we want to tell. We'll shoot a few PMs back and forth to come up with some jokes and to tell each other if there's anything we want the other to include in our characters. For instance, I'm teaming with Miko this week, and I reminded him that Saboteur doesn't curse in his RPs, something that other people who have borrowed Saboteur in the past have neglected to follow (looking at you, Echelon). After that, we decide who writes the first RP and who writes the second. Whoever is writing the first half gets his RP in with enough time for the guy writing the second half to give it a read and make his RP follow the first one.