High Casual is Advanced. If you can write 3 grammatically accurate paragraphs (3-5 sentences) that pertain to the story, you're doing great. I don't care if you're doing it with 34980572345 PCs...as long as you're contributing a respectable amount. No excessive amounts of prose allowed. xP

Anyone "High Casual" are really Advanced players either afraid to admit it or have had bad experiences with "Advanced" players (quoted for emphasis). Advanced just means that the story is deeper and has greater dynamics than the "lesser" tiers (and I mean that content-wise, which is still not a bad thing). I'm looking for enduring dedication and interest. There doesn't need to be a post every other day. I'd consider that "too much" at times. Once a week is acceptable. 

But it's really down to the GM. I'm pretty lax about it. I'll be getting an IC/OOC up tomorrow since I have it off. I'll post what I'd be looking for in a CS to be accepted. 

Thanks for your interest, though. ^^