I just noticed that I’ve started behaving in some standard ways when it comes to which sidurim I use and where I use them.
I bring the Koren Hebrew-English with me wherever I go. If I don’t want to use the sidur of choice where I am for any reason, I use Koren.
So if the sidur of choice is Mishkan T’filah, I use Koren. I’ll also keep an MT in the seat next to me in case I wanna look at something.
If it’s Sim Shalom and I can plan ahead, I’ll bring my compact copy of Or Hadash, Reuven Hammer’s brilliant commentary edition of SS. If I don’t have time plan ahead, I’d rather not use SS because it’s so big and hard to use standing up. So I use Koren, which is so compact and perfect for praying while standing.
If it’s Siddur Chaverim Kol Yisrael, I’ll use it except for during the Amidah, when I’ll switch to Koren because CKY is rather large.
Same as CKY goes for Siddur Eit Ratzon.
I think I’m going to that gay synagogue in NYC on Friday. I happen to own a copy of their sidur, so I’ll just bring that with me and give it a test-drive.