Pros:
Good time and response to dynamics. This applies to all the Helicore strings I bought to replace the original NS Strings, The change was phenomenal but I stress that I have an NS violin with strings A,D,G and C to replace the 16,5 inch viola that age and infirmity forced me to put aside. As I have no-one to accompany me I have a series of pre-amplifiers and pedal devices through two speakers. This enables classical music as well as other genres. I am truly grateful that I spent the extra money on these strings.
Cons:
None