Measurements sample rate and filter resolution

Hello everyone.
I have a doubt about the process of measuring and creating filters, especially in light of the latest SW releases.
If I make measurements at 96kHz, for example, and export the filter with 65K taps, I will get about 1.5Hz resolution.
While with 44kHz it should be about 0.7Hz.
Now, if I resample externally the wav file of the filter generated with 96kHz measurements to 44kHz, does its resolution change o it's always as the original (1.5hz)?
I ask this because I have my 96khz filters resampled at 44khz, and I don't know if it is appropriate to repeat the whole filter measurement and creation procedure to get the best resolution.

Okay. Thanks for the reply.

I take this opportunity to ask another question about the function to make the subs mono.
Typically the audio tracks have low frequencies already in mono below 100Hz, where the stereo content in fact would be useless for spatial perception.
When you have a setup with 2 subs or more, considering the high wavelength and neglecting the alterations of the room, the low frequency sound pressure of each sub is added.
So if we have 2 channels that individually emit an 80Hz tone at 90dB at LP, the result is about 93dB at LP.
Now, in the real world the two subs will have a different frequency response, so in the LP the sum will not provide linear response.
For example, if a channel has an 80Hz dip due to cancellation, so the LP pressure is 80dB instead of 90dB from the previous case, the sum will be about 90.4dB at 80Hz. But the rest of the frequencies (assuming they have a 90dB flat response for each channel) is always at 93dB.
In this case to perceive a full flat response at 93dB (always considering that the bass in audio tracks is typically mono) the other sub not affected of cancellation could (or should) emit 80Hz at 92.8dB to compensate (80 + 92.8 = 93).
And so on if there are multiple subs.
This is because the bass in fact cannot be localized so it is indifferent to where the pressure comes from.

The question is, Audiolense integrates this type of correction when I select the option to route bass in mono, or each channel is corrected according to the individual response? (therefore with the limitations due to cancellations)