Correct phone/data behavior (Sprint Touch)?

[acrh2]

I just played around with Cachetime and Suspendresume (the registry hack that allows one to turn off the data line after a certain preset period of inactivity, to conserve battery).

I read that some people were editing their registry incorrectly and were getting strange call + data behavior.
I'd like to confirm mine, whether my data+call works as it should.
Correct data+call behavior on Sprint Touch?

This is what I see.

When not roaming (EV) and connected to data:
1) Incoming calls are registered by the phone, the phone rings. If I pick up, the data connection is terminated.

When roaming (1X) and not connected to data:
2) Incoming calls are registed, phone rings, I can pick up.

When roaming and connected to data:
3) Incoming calls aren't registed, instead voice mail is used immediately on the other end.

Does this sound right?