I create my own list from scratch. Play the games yourself first. Those which you can get 1000nps, play them and note the time it takes you, then just put a range around there. Also make sure your game score has a range. I like to have some that just miss the 1000np mark.
With those games that you can't get 1000np in, estimate how much longer you would think it takes to get them. Here you can look at other peoples list to get an idea, or use the points/second method. I personally use other people's list to get an idea. Ensure that you never send impossible scores, your mods are correct and don't make it on to the top 100 list.
So yeah, thats how I do it, it doesn't make heaps like some others, my list makes about 60k in a hour and half depending on the ratios of the month. But doing this on a couple of accounts ensure I have steady flow. Then I just transfer the NP to my main using my user shop, clearing the sales history afterwards. I never sell stuff at 99999, its just a random number between 70k-90k.
Hope that helps.
Edited by koobe, 17 August 2011 - 05:47 AM.