I tried out for the first time ernie ball's beefy slinky strings and I quite like them! They sound like a beast and does have great feeling.
I use them for the tuning drop C (or 2 semi-tones down) on a ltd ec-1000. Due to the shorter scale length(24,75? to be exact) I've had small problems with sloppy strings, so I wouldn't recommend these strings if you use a short scale length guitar with drop under B. I would argue that standard or drop C# is the perfect tuning for these strings. The other problem I had is that the clarity got dulled after a week. If you're using them live I would say you need to change them atleast twice a month and if you are recording, maybe every day.
However, these strings rock because they sound really really good when they are completly new. I've tried many different brands and these blows everything out of the way. They sound super cripsy and clear and I would use them in any recording situation possible.
I would recommend these if you have cash and time to change strings two, three times a month and if you are playing bigger scale length guitars for drop tunings. Otherwise these are only "ok"