Maven Binoculars

[Hunna_wunna]

Purchasing some Maven Binos to try out for next season, just wondering if I should go with the B4 or the B5 (reading, it looks like the main difference is the ED glass in the B4 vs the Flourite glass in the B5).

Any input? Is the B5 better than the B4? I will be buying 12x56 just for reference!

Thanks!