No connection will compensate for the difference. Voltage imbalance (voltage at each phase divided by the average) will be minimal under normal balanced load, but as was pointed out it could be worse with single-phase loads.
There is a bigger problem, however. Maximum fault current on the low impedance phase could be up to 80% higher than on the other phases. There is a danger that someone will analyze this using the higher impedance, not realizing that they differ, which will give too low a value and result in inadequately rated load equipment.
Recommended practice is to use three identical transformers. Why ask for problems?
Ben Miller