When I bought my 328 3.5 years ago, I put Goodyear Eagle F-1s on my car without alligning it (it didnt seem like it needed it). I never had any issues with the handlng. Well the rear tires wore out and because the car wasnt in allignment (even though it tracked straight) the front ones were shot too. So I sent it to Ferrari of Washington where they did a 4 wheel allignment on the latest machine. They said they alligned the front and also the back which they concluded never had been done since new. I can actually see less neg camber in the rear now- I guess what I saw before was the result of the suspension settling over 16 years. So for the first time since I have had the car, the car is properly alligned. These guys are good so I will assume its correct. Then they mounted and balanced the new tires- feels good no vibration even at 100 mph. I had them mount Goodyear Eagle F1 GS-D3s on the car- factory size. Actually I should say they mounted the tires before alligning it. They said the F1s were a good choice. Here is what I've observed: Straight line performance is just as good as before- no wandereing. tracks straight etc. Performace around tight corners is just as good- neutral, but I can get the back end out predictably if I want. However on large radius sweepers at mod to high speeds the steering is a bit twitchy and I have to correct by turning the wheel more (understeer). Is this the result of the new tires? a properly alligned car I am not used to? or some combination? I would think with less neg camber, I would get more oversteer. I took a pound or two out of the front to get more grip but no difference. I am not unhappy and certainly I am fine with everything but I can tell a difference. I remember reading the initial articles on the 328 which said they understeer which I never prevously understood. Also they needed alot (about 12) of 7 gram weights to balance one of the wheels (all placed on the inside) and i noticed two of them fell off as I found them on the floor next to this wheel- Even now I cant tell of any problem even at 100 MPH ie if they fell off while driving I never would have known! Can I just ignore it? What do you all think ??? Thank you!