barto,
Probably the worst plane you could pick as a second plane. I love this plane and own several from the 0.40 you are considering to a 40% Carden. Make this your 4th plane. It is not a stable plane even on low rates. A 40 FX is not enough engine to 3D this plane. you would need an OS 70 or YS 63 4/stroke or a good 60 or larger 2/stroke. (Stability and maneuverability do not go hand in hand. You give up one to get the other. This is a highly maneuverable plane).

Better choices for your second plane:
Sig Somethin Extra (really nice with low throws and allows you to progress to more advanced aerobatics as your skills improve). Other Sig planes including the "star" series of which the Mid*Star is a favorite of mine as a second plane. There are other planes in this category including the Morris Hobbies offerings however these might not be available easily in your location.

Many like the "stick" type of plane as a second plane. I like them too but see quicker learning curves with other planes.

Good luck,
EXCAP232