@rauliruegas Apparently you've yet to sort out that I've never stated that loading affects frequency response of LOMC cartridges. Please cease and desist from claiming otherwise.
47K is the standard loading value for all cartridges, which is why phono preamps have a 47K input impedance. The reason many LOMC cartridge manufacturers might state a lower value (like 100 Ohms) is that they have no idea how competent the phono section will be to which their cartridge will be connected. Obviously it won't sound right if its sensitive to RFI from the cartridge and the loading detunes that resonant peak to which JCarr, Jim Hagerman and I have referred. So a nominal value of 100 Ohms is specified since there are so many phono sections that do have problems in this regard.