Glad you found a way, Papa G. What fluid are you using for the swap? I went with RockAuto's AC Delco Dexron VI for $3.79 per quart. Ordered 21 qts, but I needed that much to do the multiple fill and drain cycles, since I didn't pull the cooling lines off. Doing it the way you are doing it sounds the best, since it gets every bit of the old fluid out and doesn't require as much. The Dexron VI works great in the GM auto transmission. Shifts very fast and smooth.
Doing it this way, does it automatically mean you would have the correct fluid level, or would you still need to top it off while warm if some of the old fluid had previously leaked out?
Are you changing the filter, as well?
__________________________________________________ _____
2005 BMW 330Ci ZHP Jet Black/Black with aluminum cube
Bone stock at the moment