30 Spectre I/O porpoise
 

My friend bought a 30 Spectre with twin 525SC with bravos.
He has been having a really bad porpoise problem with the boat. I offered to get in the boat and help him with driving it and maybe try to lick this. He has four blade bravos.
I drove the boat and nothing worked to stop the hop. I tried gentle arcs and then straighten the boat out ...hop, hop.
Here is what I noticed. Neutral and slightly negative trim the boat was a little better but would not air out and get to the speed where it would stop the porpoise. Anything over neutral trim and the drives would blow out and the bow would fall even more. I think his drives are too high or he need to try five blade props. Maybe both. I did forget to ask if he is turning props in or out.
Anybody with similar issues on the Spectre 30?