@routeman21
To me, this sounds like a case of amp and speaker not synergizing -not playing well together. Again, to me, the amp/pre/speaker interface is most important. Get this right, and your system will sing. Mismatch and you probably won't ever get it right.
I'm unfamiliar with your amp and speakers. As your amp appears to be older CJ, I'd assume it is more syrupy and dark - unable to produce significant snap and sparkle - aspects of sound you and I are both looking for. If that is the case, it won't work well with the Harbeths, which on the other hand I know quite well. If I am wrong on the CJ, please disregard.
I have significant experience with the SHL5+, both at a friends and at our dealers. They synergize well with Luxman, Rogers Highfidelity, & Line Magnetic and various brands as others will attest. Since you like tubes, Rogers or LM would work well. Both have snap and sparkle with the SHL5+ and 30.2s and other speakers in the Harbeth line. In my opinion, they are both quite good with Harbeth.
In the end, I don't know CJ gear and so I'm not sure how it will pair with other speakers and what speakers it can make sing. But I do know Harbeth and they indeed can and do sing (snap, sparkle, etc) very well. I know you didn't ask for an amp recommendation, but it may not be the speakers, but rather the amp that is the culprit here.
The best $10k new speaker I've heard is by far the Wharfedale Elesian4 and pairs well with the amps mentioned above.
Good luck in your journey