Golden Bear white rot success

We usually lose about 50% of our onions to white rot but have only lost two out of 120 from this years crop of Golden Bear.  It's possible the one bed is less contaminated plus the dry weather may have helped but rot still claimed half the Red Baron nearby.
GB is marketed as resistant to downy mildew but I read it has an increasing reputation as having some white rot resistance too. Maybe the roots produce less allicin so the rot isn't triggered into being active. Whatever the reason I'll be growing them again next year.