Intriguing changes :) I don't think the explicit is an issue though, imo you don't need to hold your tongues ;)
Mondays: yes, I would listen if not prefer it. A little more time to digest things is good, it would allow for unforeseen chapter delays, and personally it would give me a OP fix for the start of the week.
News: keep it the way it is. Don't force a structured format, you guys are the funniest when you're the least structured.
Length: 1-1.5 hours is my preferred list because I can handle it in one sitting. But if it's only going to be one episode a week, then 2 full hours is fine.
Frequency: Either is fine. But again with the length, if once a week-1.5 hours. Twice a week-2+hours.
Anime: I haven't been listening to the anime decals recently because I'm about a year behind on anime, so I can't really say.
of people: 3-4, 5 absolute tops. It gets crowded with too many, but 4 is a good number. 5 like when something special is going on.
Listening since: Not very consistently, but about a year ago was my first listen.
Found it: from AnimeUSA 2009. Convention discovery :)