With the exception of maybe the locals in your area, 99.9% of the people you talk to in DX, are not going to know you changed your handle from Gearbox, to Pumpkin-Head, if that's what you chose for your new handle..."UNLESS" you have been going by Gearbox for years, and only talk DX on one particular channel, then someone in DX that's been talking to you regularly for years might recognize your voice and know you as "Gearbox"...Then you would have to also let that person know you changed your handle..."If you want", totally up to you.

I know guys that go by something different every time they get on the radio!