RAW conversion in 2 then update to 3 and its RAW conversion

Question

I noticed that when I upgraded from 2 to 3 then 3.1, Aperture notified me that the RAW conversion it did in 2 is not the same as 3 and, would I like the 3 conversion done? When I said yes to one test image, it came out considerably darker.
What have people been doing with that change and, is it happening generally to all RAW conversions to 3 with most camera brands and models?
My preference is to leave them as version 2 as I always like the way Aperture handled RAW. There was a test comparison of RAW converters a year or so ago (I think it was a French site) and Aperture 2 held its own and was my preference.
So now I am wondering, how will new previews be when I import them into version 3? (Have not shot anything lately.) Since I prefer the Aperture 2 RAW to JPEG converter, can I set Aperture 3 to convert more like that?

Answer 1

I don't really want to reimport.
By processor do you mean RAW processor?
It's not that the new RAW in v.3 is bad, it is just darker.
I read up more in Aperture Help. Apple seems to indicate that one might like to keep the earlier RAW processed images and you can. Although, from the sounds of it, they make the v.3 RAW converter sound much better than v.2.
So, still, I just don't know how to "process" this issue myself.
How have others upgrading from 2 to 3 dealt with it and, did you notice the darker image after the conversion? Did anyone keep the v.2 processed images?