I use 1.5 reeds on my 8* NY chamber link tonemaster. I do find I have to clip them sometimes, but most in a box are fine.
The general rule is the larger the tip opening, the softer the reed.
I like the tonal flexibility of a softer reed. I think they have more colors than a harder reed with a smaller tip opening, but that might be just me and my anatomy and technique.
I also find that when playing with softer reeds, the ones with the darker colored cane work better YMMV.
Insights and incites by Notes