Car Craft has a good article this month on the 200R4. Art Carr at
www.cpttransmissions.com did the build up. They put the 200 in a blown El Camino and it worked well. He's well known in the tranny biz. I used to work on trannys years ago and didn't like 200's much either. But then again a lot or GM's stuff had problems back in the eighties. We used to do a lot of mods to 700's to get them to work right and last more than 50K. .