I love the balance of this set. I have my guitar set up with quite low action. The slow bit of additional tension on the treble side is very welcome, but the set doesn't feel as stiff as I suspected it might.
I would recommend that anyone even thinking of trying this set, give it a go. I'm glad I did.
Now to the point: The HD are the prescribed string for the smaller bodied Taylor guitars. Never having been good at blind obedience, I put a set of mediums on my koa Taylor, and took them back off 5 minutes later. Taylor knew what they were doing.
That said, I'm picking up a couple .054 low E strings from other manufacturers to test my theory, which is that my guitar would benefit from SLIGHTLY more bass in that low E.
Overall, I'm fond of them, pleased by the Elixirs I've gotten, but I wish they made something between the 53 and 56 for the low E.
I would still put these on my Taylor guitars every time.