Thomastik-Infeld Dominant Violin 131 4/4M, Ball End, A, Single String

These might not be the strings that the pros are using but as an average fiddler I find these strings great for my Scandi, Scottish, Irish, old-time fiddling. I play each set to death and I think they sounds good even just before death. It is not until they beg me to retire that I change them.
Buying strings from "Strings By Mail" is such a great pleasure. They are serious and the delivery is prompt. Even when I had a set that failed miserably, they replaced it with no questions asked. I can highly recommend these strings as well as the company.