On another note... I just read the thread (all 4 posts) in the link Bill provided to back up his wild ideas.
There's absolutely nothing in there that has any sort of relevance... at all.
The thread can be summed up like this.
Someone is trying to get a cheap tune, and someone else copies and pastes what ZZP said is included in their pcm adjustments.

I'm not sure how that was supposed to support his position, at all.
Go ahead... read it.

http://idahoclub3800.com/viewtopic.p...b7d78c4b7dcc88