I like a fairly light action, and for a guitar that I would be exclusively E-tuning I would use regular 9-42 super lights. But I often tune E-flat or drop-D, and the 6th string gets too sloppy for my taste in those instances. These hybrid sets are a nice option for that. The high strings are still light and easy while the low end maintains more stiffness for lower tuning setups - it's the best of both worlds. These are a little bright when first installed but they mellow out fairly quickly and seem to perform consistently for a long time before getting too dull. To date I haven't broken one.