Aha. Perfect. Thanks.
First, on cursory review I see nothing in that plugin that would interfere. It adds an extra radio field to the default form. Only thing to do is give them both a try together and see if entries are still collecting in your log. Please report back either way.
/contact-uswhich is why I asked.. I'd try them, but only have one record in my log as it stands so it may not be an effective test.