I have used Martin Bronze lites on my guitars for 30 years. They have always sounded better than the others I have tried. Of course that is opinion and not a provable fact. I have used bronze pins on my Guild guitar for 15 years. After much experimentation I find they make my Guild look nice but as to additional sustain, I don't hear it and neither do my band mates. Also opinion.

But the strings. I'll keep them.

Don