Good luck on your journal. I have been trying ppv off and on for the last year and have had only marginal success. Hopefully your results are better. I can say, I did have very little success with zip/email submits except when they were in really low volume.
I would say it is best to use NEW plr and then spin or just write original and spin. Taking others work could lead to your articles getting taken down in the future, plus it could be hard to get your articles ranked if they are not completely unique. Just my 2 cents.
Yeah, perhaps I am being to conservative with my mailings to this group. I am only mailing them about once a week and keeping it to mostly all content. If you have any ideas you want to share on monetizing my list I would surely appreciate it.