I've been doing some setup changes on my TCM tune and am curious where most folks like to see their converter lockup on a 1/4 mile pass. I'm running a custom CircleD 245mm converter, stalls right around 4400 RPM in my C7. WOT shifting at 6800 RPM, I currently have it locking up at 99 MPH in 3rd, but wondering if it should be sooner. I'm hitting 4th gear @ 121 MPH...should I keep it locked up for all of 4th as well?