Can someone catch me up. I'm aware of the general controversy that's been raging for over a year now and used to regularly read /r/btc (I left not because I don't like you guys but just started spending my time reading other subs and generally drifted away from crypto for a while). I also am aware that BTU has gained a lot of hash rate recently (though I'm not sure how much).

• Is Bitcoin Unlimited /r/btc's main supported client at this point? (I know there were other non-Core clients at one time.)
• What percentage of hash rate does each position have at this point?
• What percentage is needed before BTU hard forks?
• Will the hard fork happen immediately once that percentage is reached, or will there be some sort of delay?
• It seems like there's a lot of talk about a split. During the Ethereum split it seemed like a lot of people said a split with Bitcoin would be way harder because of the longer block times and the longer difficulty adjustment period -- making the losing chain take forever to mine. How is a split so likely now?