ZYX Airy 3 vs 90X

I am looking for some clarification regarding the sound characteristics of these cartridges. Now that I have the new Schroeder Reference arm I am wanting to upgrade from my Shelter 901. From previous posts it seems that the ZYX cartridges are compatible with the Schroeder despite what seems to be a low range on paper for the resonance frequency. I have not heard any Zyx cartridge and am hesitant to make a change such as this without understanding how this may compare with my 901 or a 90X. My asumption is that the 90X will be an improvement over the 901 but retain a similar tonal balance. I currently have 15DB of gain on my Lamm L2preamp, 44DB with the Hagerman Trumpet, and 20DB with my Bent audio S&B trannies. This totals about 79Db. The 901 I am using is 5mv while the suggested Zyx is the lower output 24mv. Do I have enough gain for the .24mv Zyx? I have heard comments that the Airy is somewhat forward sounding which scares me a little as that is not normally something that I am looking for. Any input that you guys may have will be appreciated.