Closet door is still closed and we still haven't removed the old litter box. Tomorrow maybe? We'll see. There was no visible activity in the LK this morning so I decided to clean out the "smell" I had added the day before but not the new pee. Only a few hours later I hear scratching from the bathroom with a present left behind and see Logan sitting next to me so I'm able to confirm that Tek has used the LK. We also suspect he was a user yesterday but can't confirm. Tek is the lesser intelligent of the cats so this is a good sign but Logan is a lot more private so I'm hoping he's using it even though we can't be sure. Would really like to be sure soon so I know he's not holding it in! I can also say that I do like this new litter, The Worlds Greatest Cat Litter! I mean it smelled of ammonia right after but a few hours later it was definitely a lot less noticeable, if at all! Love knowing it's flushable as well. And since you're wondering, still no poop... Fingers crossed!
Update! Let there be poop! Discovered it after I posted, I'm PRETTY sure it was Logan so that's a good sign. He was scratching at the old litter box door and looking uncomfortable and after I found it he seemed much more comfortable and could care less about the old closet. Good sign! I should note that he didn't get it in the ring, it was on the outer part of the fake toilet seat but I read it was important not to yell at them if they miss because it'll discourage them from using it so I praised like crazy and cleaned it up. YAY! If we get through tomorrow smoothly I think we'll move it up to the actual toilet.