I’m a 60-something midlife double bass student, trying to learn to play arco. (Actually a converted electric bassist.)
Yesterday I replaced my 5-year-old Evah Pirazzi Weichs on my Shen S-150 with Helicore Hybrid lights. OMG! As others way up in this thread have said, the HHs brought my bass to life. With the EPs I had been really struggling to get a clear, clean tone from stopped notes, especially on the E and A. With the Helicores that problem instantly vanished. Low stopped notes now sing out. Faster bowed passages no longer get buried in half-present squeaks.
There is a bit of “buzziness” in the tone of these strings, at least on this bass, and some folks might be put off by that. Not me. I appreciate the clear out-front quality of the sound I get now.
I had scanned this thread before I ordered the Helicores and decided from your posts that they might be worth the money. They certainly are. Thanks, guys!