Looking at the red segment in the RPM dash, there is something wrong with your vehicle definition. Can you please check the RPM values set for STi, or post some screenshots of the vehicle details in LT?
Audio and video will be in sync. So you need to adjust the alignment between video and data recording (which should be easy in DW). I do not believe this is related to short or long tracks, I believe you will simply be more sensible to misalignments if sections are shorter.
Everything cooperated and I had a brilliant track day at Mid American Motorplex on Saturday with some good friends. I was very happy to get a chance to use HLTP in my new car, breaking it in on the track for the first time :)
I did have some questions / issues that I wanted to get help with after ...
I went with this solution and am very happy GoPoint BT1 + Emprum UltiMate (Bluetooth OBDII, direct-connect GPS)
Just an FYI, the iPhone 4S CAN be synched with 2 bluetooth devices at the same time ... not well documented but it works. There may be an exception with A2DP devices, but that's a whole ...