Originally Posted by chienmort
Br careful as these strings tend to have much higher tension and a hollow body may not be strong enough. I use the Picato half rounds and I love them but I would not trust them on a semi acoustic.
What part isn't strong enough? But - first - are they high tension? D'Addario's tension chart leaves me with the impression they're about the same as the flatwound strings that many hollow body players use.
My old Japanese hollow body looks a lot like this one. It's built like a tank. Full hollow, but thick hardwood plywood. My newer Gretsch is a lot thinner (and more resonant), and I'm still pretty confident that my heavy gauge flats are going to cause no trouble at all.
The reason to use, or not use, half round strings, is the sound. You can find some youtube video demonstrations. Not as many as with flatwounds, naturally as they aren't as commonly used. Some people like them. To me, they sound like round wound, thus not so good, but if you want that round wound sound in a smooth string, maybe they're for you.