Just had my new GN delivered over the weekend and it has a 200 R4 tans. built by Rosler w/ manual valve body. I'm clueless! How should I be driving this thing. The guy told me I have to do the shifting... starting out in 1, then 2, then D, and I think OD finally. Is this correct? When should I do my shifting? Any info on this kind of trans would be appreciated