Do, I have to go back stock to trade in my TP2 at Radio Shack?

[edub186]

I might trade in my TP2 tomorrow. So I was wondering will Radio Shack trip out If I give them a phone with a flashed rom?

If so, All I need to do is flash the stock rom right?

I posted this in the TP2 forums also but only 1 response out of 30 views, I thought maybe you guys can help since, I wont be the only one doing this from this side of the forum.