PaulS:
so perhaps (using delay())..
I don't see a delay().
You have to squint a bit. Here, I'll enlarge it:
byte crap[] = { 0xc1, ox33, 0xf1, 0x81, 0x66 };
for (int i = 0; i < 5, i++) {
mySerial.write(crap, i);
delay(20);
}
I don't know why it shrunk so much. 