I forgot you're a GLI, not a GTI. :dblthumb2: The GTI's are sharp, but I've always liked the handling of the Jettas with the extra weight past the rear axle. (Probably same reason I've loved my avants so much). I've probably mentioned before, but my first fun car was a MkII Jetta I built for Autocrossing. Full suspension, big rear bar; with some left foot braking you could comfortably slide/rotate the car with less risk of the Tank Slappers the GTI's/Corrados were prone to.
I had Pilot Supersports on the avant, would highly recommend their successor the Pilot Sport 4s's. Have an alignment done to ensure your front toe is close to zero and I got a surprising number of fun miles out of them.
Also, you and Klasse are killing me - I was planning on waiting to do an APR tune on the new shooter, but it sure keeps getting more and more tempting! Wanted to get some baseline miles on to get a feel for it, but having already put 3 or 4 k on it, I think I'm pretty familiar.
Also wanted to get a feel for fuel mileage, thus far I've had multiple tanks at 27.x, which for a Quattro car (full time AWD) that weighs about 4,000 lbs I'm pretty dang happy with! Very curious to see how that goes when software goes in, I know they say a lot of folks see an increase...