My band covers a huge amount of musical territory. I'm playing slide as much, or more, than common chording and lead work. I found that the normal 10 to 46 or 10 to 48 GHS Boomers I commonly used were a little lighter than I would have liked when I was switching to slide and causing the slide to bottom out if I didn't concentrate on keeping my touch a little lighter. I used GHS's Big Core Nickel Rockers when they were first available,and I loved them then, so I picked up a couple sets to see if they would remedy my situation. The thicker core makes the strings a bit more stiff than conventional strings, so they're great for alternate, and lower tunings. They also add a bit of volume. They work perfectly for me, and solved my problem with a couple unexpected benefits to boot. First of all, they have enough added tension to switch to and from slide without any problems. Secondly, they stand up to repeatedly changing to alternate or open tunings without breaking nearly so often. Lastly, they have a rich, deep tone with beautiful harmonics, and a nice little bump up in both volume and mids. I don't usually write reviews, but these are exceptional strings, and set the standard for me. I can't recommend them enough to anyone who can benefit from the qualities I mentioned above. Great strings with great tone very reasonable price.