I just started using bluecat to tune my 2007 z06. I've made a lot of progress by starting with one of the LS7 sample VE tables and doing a couple rounds of adjustments. I'm definitely in the ballpark now, but am seeing something that concerns me. If I import my new VE table into my tune and then immediately re-export it I do not get the same values back out. For the most part the numbers are around 1% off, but some areas are as high as 10%. It's also adding some strange contours that I didn't have in certain areas. What the heck is going on? I have auto zone boundaries deselected.
Another issue I think I'm having is that my cam is so big that I need a really sharp transition from low VE values around idle. It seems that bluecat averages out my changes, which means my adjustments around idle aren't responding very well (still rich). I'm not sure if it'll ever let me create the VE table my car needs..... I read on a bluecat thread that this is not unusual, but how the heck am I supposed to work around this? It's pretty important that the table is dialed in around idle.