Definitely stalled her. Even though the World Model Spit isn't true scale, you are starting to get into the realm where your models will, or should, exhibit some of the same characteristics as the the 1:1 does. With just about all warbirds, you have to fly them in. Keep power on and fly them in...can't cut the throttle and let them float in like you do with sport planes. Also, do some research on the characteristics of the 1:1, if it had a tendency to drop a wing the model just may do the same thing so you can be ready if it happens. Learn what to expect and what to do if it does...even with that advanced preparation, you may not be ready for it the first time or two it happens. But don't look to blame your TX or RX or batteries...remember what happened, and how you got out of it the frist couple of times, try to remember what was different about the third time? When I have a mishap, I try to remember all the details that I can, and I will replay it in my head along with my reactions...if you do this enough, things almost become second nature, and after a while, you don't have to think about what to do, you will instinctively react to the situation. Finally, not all warbirds react the same to the similar situations. So with that in mind, doing your homework and knowing what to expect pays off in the long run.
Also, I haven't flown a Spit in a long time, but if memory serves, they like to drop a wing in a stall if you get too slow.
Just my 2 cents,
Rob / Katchmarek