Hi Doug: your experience with altered VTF for different operating temperature is worthwhile, but with one caveat.
Increasing the VTF will make tracking more secure and bring the SRA back to where it should be, but it will not compensate for temperature-driven deviations in measured frequency response. To correct that, I don't believe that there is any alternative to setting the room temperature to whatever the cartridge manufacturer recommends.
OTOH, since the measured frequency response at the outer bands of the LP will almost certainly be different from the frequency response at the inner bands, perhaps it is not such an important thing to quibble over.
(I have been re-reading a white paper that the Entre company published for their EC-25 cartridge series, which includes graphs showing the differences between outer-groove response and inner-groove response. The outer-inner difference that Entre reported was between 6-7dB for a Japanese-made test record, and it looks to be about 13dB for a test record made in either the US or Europe.)
kind regards, jonathan
PS. Recommendation for Lyra owners - our preferred operating range calls for temperatures of 22-23 degrees centigrade, and a relative humidity of 58-60%.