I can say specifically when I had odyssey amps adjusting bias did help, but will not necessarily make them get away from the forward sound they present. Maggies will be far less efficient hence "Less exposure" to the tonal, and noise tendencies of the whole system.
With 96 db you start to expose quite a bit more underlying system balance.
In the end the big transformers, and extra watts behind your amps might be better suited to panels vs. high efficiency dynamic drive speakers.
The average efficiency of speakers out there seems to range from about 87 db to 92 db, and when running speakers like this on the Odysseys they were okay, but did "Warm" up the sound a bit when Biasing to the HIGH side. More current generally will fill a speaker out a bit more especially in the Mid-bass, lower midrange. Maggies don't move much air, or create subwoofer like bass in the first place so it's less an issue, and its more about the fact Odyssey can drive lower impedance on the curve with a panel.
Ultimately though I don't think this small adjustment will be better suited to high efficiency speakers, and honestly better off staying away from this version amplifier in this combo.
Side Note: I did run some friends Klipsch 99 db on the Odysseys for a while at the time, as well as Zu Audio Definitions @ 101 db. They both were way too hyper in these combos, you may need smoother more forgiving amps than Odyssey provides... Sorry just a fact.
