I dont have this aircraft, but, you should be able to that with ease. Its not pushing the boundary at all in that manuver.
Its only when you push the boundary that FSX screams. What i mean is, It's only when you perform maneuvers that go outside the general function of an aircraft, such as with the F-4 Phantoms and Su-37s backflips, The SU-26s tumble, The F-22s tailslide. Those aint normal, and FSX screams real loud when you try to do them. Of course i've managed to find a way to do it, but thats me ( i'm nuttier than a fruitcake at times ) and it isnt something i would enjoy doing more than once in a flight model. In FSX, you can do anything in the latitudinal plane. But if ypou notice, all those maneuvers listed above are in the longitudinal plane. Longitudinal is almost impossible to deal with. If the tumble is the only thing you cant do in this plane, youve got a great plane for fsx....