The difference between *0w and *1w is if a response from the radio is expected.
Some of the radio's respond in HEX and can cause that error or be confusing.
My 2 cents, just use the *0W as you have already surmised.
Macros are really helpful but there is a bit of a learning curve with each radio.
73 - Mark - K8MHW
'A RigPi Enthusiast!' - I am not otherwise affiliated with MFJ or RigPi