Hey Tony...been having trouble emailing you back...keeps getting
rejected.
That line you talked about is known as "The Sturm Gambit"
and after 2...dxc4 3.Na3 e5 4.e4 Bxa3 5.Qa4+ Nc6 6.Qxa3
Qd4...black has a clear advantage.
We can discuss it more on the theory forum if ya like.
Dave
USA Captain