I am at about 850 miles almost finishing the 1000 mile break-in period, and I am slowly going towards the 4K rpm mark. I have been careful not to exceed 3500 but occassionally I touch 4K. This morning I started driving it like a manual shift without a clutch. I start with the 2nd gear rev it up to 4K, then shift to 3 rev it up to 4K again and then shift to D. It seems to respond pretty well and gives a small taste of how the manual shift would feel though may not even be close. Is it ok to drive like this? Some of you may have tried this style rather than strictly adhering to the auto, if so, what are your impressions.