I feel like I'm missing something obvious. I've found a good price on some 4'x20' Solar bear panels that I want to install myself, but I have a 20'x40' IGP and these are supposedly for AGP. The biggest IGP panels that FAFCO makes seem to the be the sunsaver which are 4x12 or 2x20. They are also more expensive.
So.... what's the deal? Do I get the AGP panels, mount them to my roof and forget about it, or do I shell out some extra cash for panels that are explicitly designed for IGP? What's the difference, anyways?