Your trigger pull is too short..you are getting switch bounce, if, and it is a pretty big if, your trigger pull is "normal" you have something wrong inside or at the very least the trigger return springs are damaged in some way. All electro's if set with a short trigger pull will bounce as you described its just that after a lot of publicity on here and other forums the judges have finally started to look for it and unfortunately finding it where in some cases it isn't user interference that has caused the "fault" (this could start something again) if you play enough with an electric switch (cos that is what the trigger on an Angel or any other electro is) you will be able to get the switch to misbehave, its just a case of wether or not you have the "touch". Easiest way to avoid it is to have the trigger pull NOT insanely short. All of the Angels found this way lately have all had stupidly short trigger pulls.
Sorry about the little rant but fiddling with markers tends to throw up things like you have described, just cos Player X can chuck 4 balls to your 2 doesn't mean you have to try and compete, with the result being your team lose points.
WDP would be your last port of call if you try to fix it as I have suggested above, but then you surely have an Angel Tech closer than here in England?