Adam, did you coin this term, "Pretty Much Reformed"? It does have a better ring to it than the old BR (Barely or Broadly Reformed as opposed to TR-Truly Reformed.) You know that the question of who is Reformed has been beaten to death in other forums. I'm comfortable saying "I'm Calvinistic but not a Calvinist" but that's likely going to be confusing to some and others will see it as obfuscation. What I mean by the phrase is that I embrace the Doctrines of Grace but not the whole Calvinist or Reformed system of paedobaptist covenant theology, Presbyterian church government, certain views on eschatology, Sabbatarianism, etc.
I think a lot of it depends on the context in which one wants to use certain terms. If I say "I'm a Calvinist" or even "I'm Reformed" to some SBC friends who have some knowledge of the issues they know what I mean. But saying that will send some confessional WCF types into a tizzy, and understandably so.