Back to back tranny flush?

[jcorreanyc]

So I did a successful tranny flush on my 4.8is 6HP26 tranny after 140k miles and replaced the mechatronics sleeve and the filter. It made a huge difference. But I know that I only got about 6 out of 9 or 10 quarts of the old fluid out. That's 60%, but I'm thinking if I do another flush and filter right away, i'll then be at 80% new. Hoping that it gets me to like new condition! There were no metal flakes or buildup on the magnets the first time around believe it or not, but it was shifting horribly. I also updated the software with WinKFP which made a huge difference. Thoughts on the second flush? Has anyone done this with good results?