Broken L/R servo spring

Im kinda curious as to what it does. I have the torqueflight book (with the A body Cuda launching) probably explains it in there. Been a while since I read through it.

Its a TF-2, and came with a spacer. I just pulled a cushion spring from a 518 I have. Stiff lil spring that's for sure. Interestingly 1-2 shift wasnt a problem, it was nice and solid. But the 2-3 shift, lots of overlap and now flair-up. Also very temp sensitive, hot it'll shift @35 cold it won't shift until 42-45 depending on throttle pressure.

At this point it takes quite a bit of throttle to get a flair, unless its between shifts. I was hoping the shift kit will shift it quicker and reduce heat. That in combination with Type F, Im hoping holds until I can get the 46 built. I left the 2-3 ball out so hopefully it slams into 3rd lol. Id rather that then flair. All the other seperator orifices I drilled to 3/16 I believe. Basically whatever sizes between street/strip and race.

Pan didn't have a whole lot of material. Definitely some sludge buildup. Although the magnet was plump full :/. Idk see what happens.

I believe the cushion springs main jobs were to soften the 1-2 shift a little and soften the application of the rear band. The bad thing about having it in there is when the rear servo pressure releases the big spring pushes the servo off but the cushion spring acts against it slowing the release. In most cases that causes 1-2 shift overlap when you manually run it through the gears. A lot of shift kits come with the spacer to block it to clean up the 1-2 shift