I like to run a combination of a ScanMaster & Direct Scan...
The SM is great for heads up info, keeping track of the vital parameters while cruising around & on the fly adjustments of boost & fuel for those weekend "street fun" sessions. Direct Scan's myriad data points & super fast sampling rate are good for detail oriented, post-run tuning while at the track.
Doug C.
BTW, checked out the web page in your sig... NICE looking car! If you haven't already hooked up with the Houston Buick Club, I can set you up on our local email list.