Birel/Rotax weight bias

[Terry Grau]

Finally scaled my Birel R32x/Rotax Max and found the front weights even right to left, with resonable split in rear weights. But the differential front to rear is 40/60% even with the battery front mounted. The addition of fuel will improve this only slightly.
Since the rumor is that Birel's like closer to a 50/50 weight differential, does anyone have any thoughts on handling or chassis setup for me.
I'm running at 370-380# depending on fuel and dehydration.
Terry