I've been using a medium Moori, but I think I like the hard Moori tip better. They don't have any hard Mooris around here, the last time I looked. So I've settled on using the medium Moori.
Personally, I do not use a layered tip. It seems like they mushroom on me a little.
It's like my cue stick. I need a little stiffer hit to execute the things that I like to do.