Chromes will feel much stiffer. Fender flats will growl. GHS Precision flats are closest.
But really, just show up. Tell them, if they notice, and they probably won't, that the tapes are the same as flats, and just go with it.
Lol,true enough! I don't think the other bandmembers notice that much difference in the timbre of bass strings over their own noises!