UPDATE:
After using these strings for a while I've come to the conclusion that the 6th (lowest) string is too heavy gauge for my baritone guitar. The 6th strings feels and sounds completely different to the rest of the set. It feels like a bass string compared to the other strings. Both the feel and the sound is very unbalanced. The other strings also stay bright for much longer while the 6th string is kinda dead sounding out of the box.
There is also the issue of output balance across the strings. On my Squier Jazzmaster Baritone without adjustable pole pieces that fat 6th string has a much louder output than the 5th string. The 3rd string is also very weak compared to the 1st and particularly to the 2nd string.
I wasn't 100% happy with the D'Addario 014-068 set I used before but I had to go back to them. These Pyramids are simply too unbalanced both with regards to sound and tension/gauges for my taste. I also got slightly more string buzz with the Pyramids, no matter how I set up the guitar.
Of course, if you have adjustable pole pieces you will probably get a much better result. These strings are sold specifically for the Gretsch Junior Jet which to be fair DOES have adjustable pole pieces. I'm sure these strings would work much better with that guitar. I have therefore NOT altered my ratings but I leave this information here in case anyone else are considering these strings for an instrument WITHOUT adjustable pole pieces. If I HAD to give a rating for these strings with a Jazzmaster-style baritone it would have to be "poor".
My original review follows below:
I got these strings for a Squier Jassmaster Baritone. I wasn't happy with the .014 D'Addario baritone strings I had used so far. They felt more like regular guitar strings for de-tuning, with a much too floppy lowest string for baritone scale.
These Pyramids are much better. They also have a nicer sound than the D'Addarios for my taste. Less harsh, fuller, twangier tone.
These strings are sold as "Gretsch Jet Baritone strings" but the lengths of the strings are extremely generous and will fit any 30" (or close) baritone guitars... but you may need to do a slight modification to some guitars.
The problem is that the overlapping windings near the ball end are kinda messy so the lowest string will be comparable to at least 080 gauge down there. This may not fit into your bridge. I had to widen the hole in the bridge on my Squier. It's not a big deal but something to be aware of in case you don't want to use a file on your guitar.
The only other negative is that the lowest string (I tune to B) is slightly "dead" compared to the rest. Maybe dead isn't the best way to describe it. I guess slightly less bright is a better choice of words. It also feels very different to the other strings with much coarser windings. It feels kinda like the other strings are guitar strings but the lowest string is a bass string. It's slightly annoying when playing alone but not a big deal in the context of a full band or a mix. Still, it's much better than the floppy lowest string in the D'Addarion 014 baritone set. At least this one has enough tension.
With these reservations I can recommend these strings. Good baritone strings are hard to find and these are the best ones I've found so far. They're not perfect but they work fine for both A and B tuning with any 30" baritone guitar (provided that the bridge will accommodate the thick lowest string).
