I have the E and A from the Pirastro Slap set to go with the D and G from the Superior Bass Dirty Gut strings. Dirty guts lacked definition in the E and A for me but the Pirastro Slap strings have been amazing. (I only really play Jazz, Latin, Rock and Roll and Rockabilly stuff on the upright mind). Really want to check out the gut or synthetic D and G one day... Any one tried the gut stings from this set? Whats the life expectancy like?I have the E and A from the Pirastro Slap set to go with the D and G from the Superior Bass Dirty Gut strings. Dirty guts lacked definition in the E and A for me but the Pirastro Slap strings have been amazing. (I only really play Jazz, Latin, Rock and Roll and Rockabilly stuff on the upright mind). Really want to check out the gut or synthetic D and G one day... Any one tried the gut stings from this set? Whats the life expectancy like?