Whether or not it helps to call committee members will vary with the bill and the particular member. I don't usually ask for calls to a committee, unless there is a particular reason that the calls are either necessary or helpful in a given circumstance.
The two requests I just made are for specific reasons, but I can't disclose them in an open forum. There are certain members of each of the two committees I mentioned (House Criminal Jurisprudence and House Law Enforcement) that might respond similar to the way others have responded to you, but overall, the contacts will accomplish their intended purpose. (Yeah, I know I'm being cryptic, but I have no choice.)
Chas.