1. I looked at Pioneer and Panasonic side by side. You'd be a fool not to if you were in the market for such a device.
2. If the difference between them was analogous to a 1 second 1/4 mile ET reduction, the difference would be worth it. However, the difference between them is more like 0.001 seconds in the 1/4 mile.
3. Nowhere did I say the Avia DVD is equivalent to an ISF calibration. You can't read, can you Mr. Smarty Pants. The OP asked if CC would do a calibration under warranty. I said he should just get the DVD, since it's obvious he's not looking to spend $300+.