I'm in the same boat. Been using Energy for a while and there are only a couple of strings that are anywhere near it in terms of performance. WC Turbotwist is one of them.
I restring just about every time I play. Sometimes I can play twice without restringing. I'm going to try Polystar Strike to see if it lasts a bit longer, but it's stiffer for sure. So it might not play quite the same.
Some people have made good claims about Mosquito Bite, but I haven't tried it.
Lois: "Peter, I'm not wearing any panties."
Peter: "That's ok, honey. We can throw that chair out."