I'll give it a shot. Talking to Mike he said that by raising the LBA past 5 will essentially Max out the combustion blower at heat settings above 2. I'll give 6 a try and see what happens.
6 is ok, especially with the longer run, but i still think 5 will be the ticket, if you already set to 6 leave it for a while, then maybe bump down to 5 to see if it holds it. max speed on exhaust blower with that rev chip in an ep board is at heat range 7 so you have a good bit of room if it will hold it there