I used to think passive preamps were superior to active preamps given right the setup, but

It is not just about gain but I believe also about control of the interconnects, impedance matching and frequency variations with impedance.  The passives I have used include several resistor types (including Endler direct to amp - i.e., no interconnect) and Bent-type TVC, but not LDR.  All had excellent clarity but all missed out in the areas of bass drive and tonal depth compared to my reference, which is a no-gain, buffered preamp with a Shallco attenuator using great-sounding AN tantalum resistors, Lundhal coupling transformers and an outboard choke-filtered power supply.  My conclusion was that even with a 4V source, amps with 100K ohm input impedance, and short, balanced interconnects, the passives were not able to match the tonal saturation of the buffered preamp.

What we’ve found in actual practice with our LDR preamps in combination with countless different customer sources and amps is that impedance matching is rarely a limiting factor.

And yet, you are planning on introducing a buffered version of your preamp.  I am sure your LDR attenuator preamps sound very clear and natural, and I know how attractive that can be from the Goldpoint/Endler/JaySho (i.e., Bent) preamps I have had here, but I will not be the least bit surprised if you find that your LDR attenuator with a good buffer stage sounds even better.  At a minimum, it should broaden the range of components that mate well with your preamps.