There's no protocol, just whatever you prefer. There's plenty of folks that do both. If you want to keep it to one thread, you can edit the threads title to something like "Armornv's WIP's" if you're worried about it.
Thanks for the tip. Good thing I didn't start a whole new one..... I just found the WIP I started last year. I had completely forgot I did that. Soooo, I'll keep that one going.
