Hi all, Now it was always my understanding that all 2-seat T-birds had the enlarged (taller) rear vertical fins. On the front page of the instructions, Kinetic list all the versions that can be constructed from the kit. In the T-4 description in the type list you will notice that the T-4 is listed as a 2-seat version of the GR.3, with radar nose, and forward and rear PWR, one on the vertical fin leading edge and one at the end of the tail cone. Now this is where It get's confusing, well to me anyway, it then states that the T-4 had the standard single seat tail installed, is this true? And secondly did this also include the T-4N/T-8 variants?