Eddie, the problem is even more common with those using speed controllers with built-in BECs. People are flying these medium sized 3D planes with 4 servos and can't understand why their plane locked out and crashed right after doing a snap roll. A 3A BEC can't handle that kind of a load, and it is a real dis-service to modelers when manufacturers try to claim that the BEC is good for "4 to 5" servos without stating what size servo. When an HS-55 (the little blue ones) can draw 3/4 of an amp on stall it is easy to see that 4 of them in a snap condition could put a 3A (4 x .75A) load on the power system. Imagine what bigger servos do.
Lucien from Scorpion posted some info their vendor area about BECs used in their speed controllers. This is something that everyone should read, especially since it is coming from a manufacturer.
Hang in their Eddie, I am sure a Spark will be in your hangar before you know it!