This is not a question, it is a heads-up/warning. The V2 and the Pro/V3 use different stepper motors and are not interchangeable. If the motor listed is intended to be used with the V2 then it should not be used with the V1 or V3. Please know that this is true for V2's up to October 2019 (possibly beyond). It is possible that the V2 will start being manufactured with the same motors as the Pro/V3 but that is not the case at this time. The submission for needs to find a question mark so here it is "?"