Sorry I missed this, I don't check in on the Klipsch forums as much as I used to. Probably something to do with the fact that I haven't purchased audio gear since November 2021, just been so content with my CWIV and Audiolab 6000a Play combo. I mentioned this in another thread, but I believe I was one of the first, if not the first, people to recommend you getting into a Klipsch Heritage speaker. It's cool to see that you've gone and picked up another pair! Though if I remember correctly, you live in a pretty small apartment, has that changed?
A lot of people recommend subs with the Heresy line. But I would absolutely try placing them closer to the wall just to see. I actually use two subs with my CWIV if the mood strikes me. I've got two cheapo Klipsch subs hooked up to the pre-outs of the Audiolab and crossed over at 40hz, so they just pick up where the CWs fall off. I enjoy them with the subs too, but they lose their speed and precision with the subs enabled. I'm very much interested in a pair of Klipschs new subs, either a pair of 10s or 12s, but due to their massive size, it would damn near require a rearrange of my entire front stage lol.