D’Addario EJ45C Strings

I have played most of the strings out there and I keep coming back to the D’Addario EJ45C strings. I have been experimenting for awhile with the EJ45C’s on bass and Titanium T2 on treble side. However this winter when I was playing at a coffee shop the heater vent was above me and my trebles would not stay in tune. I heard that Ottmar Liebert had some similar issues and he mentioned that he was going to try switching back to the regular EJ45C set, I have a few of them lying around so I thought I would try that as well. I really like the way they sound on the DeVoe Negra. I also am using the G Brown composite string that they supply rather than the Clear G string.