RE: need a quick question answered fast..
Cubs have very little dihedral. I am sure when you joined them they are set at about the angle you need. All looks well. I just wonder about the Brat though. I have heard a lot of mixed bag about them. Good lord I havn't seen one of them in over 8 years. I hope it works well for you. Be sure it is reliable before you fly it. Good luck.
Mark Shuman