Hi!
My band is in Eb as well, because of the singer.
I'm not quite happy with this, because my bass sounds a little better in normal tuning IMO, and it feels better to play with the stiffer strings.
Not a big issue, but I'm still in search for a string set which is as stiff tuned to Eb as others tuned to E.
I found Daddarios (always used .045s) toooo loose, Ernie Balls (.045, too)are much better for this, and FOR ME. 55/110 set was too thick, but I like .110 E for this tuning. Next time I'll give a chance to Rotosound. would love to get 50/110 here, but couldn't.
I'm interested in this topic too - so please give us tips on string sets suitable for downtuning!
not that half step down meant THAT much... but I like my bass at normal tuning better, so why not searching the strings to achieve that in lower tuning?