The tune made great power for a mail order tune. But hard to compare to the other tune as they was not done same time. As it was mentioned in that thread these engine pick up some after break in. It also showed where the dyno tune was better.
I had a BBR tune. Made 446whp then I put a tune done with the help from Jon Lund. I made more power 450whp. It also solved my issues that I was having with the BBR tune also. But I then had a dyno tune done by Jeff Smith of Central Texas
Performance and picked up 16whp and 12wtq on top of the other tune. I do run my car aggressive though. If I lose an engine I am not going to try cover under a warranty either though. It will be time for a built block and nothing less then 850whp.
As you said it is great you give a warranty. And for most that is sweet. Hard to beat that. But I have yet to see only one claim a Lund tune took his engine out. Yet he had 3 other tunes in his car before. They all had been switched out over and over also.