The seller says that it is indeed the 2.9 Amps for Unipolar, the motor has 8 wires. So, what does this mean for other wiring possibilities? Does this mean that in Bipolar series I will probably get the full torque? So does it go like this:
Unipolar : 2.9 A
Bipolar Series: 2.07A
Bipolar Parallel: 4.14A
Is that what this should be if 2.9A is the Unipolar rating?
Is there any way that you can tell for certain? (without taking the motor to the max and blowing it)?

Thanks.