I'm excited to get my 1100.4 in the car, how you liking it so far?
On a side note, you said in the last video that 4 Ohm and 8 Ohm parallel makes 6 Ohm. When connecting parallel loads the final resistance is always less than the lowest load. For two loads its product divided by sum, so in your case 4*8=32 divided by 4+8=12. Giving you a final load of 32/12= 2.66 Ohms. So you should be getting quite a bit of power out of that amp.