Cheetah valve body... Throw away spring?

I've tossed a few accumulator springs in my time. Years ago, A, or should I say THE, local mopar man had them sitting on a small ledge above his sliding shop door like birds on a wire. Must have been 30 of them. A slug that holds that piston in opposite position or limiting the piston travel might be a smarter option. I'm no trans guru. A different spring pressure calculated against system fluid pressure is way over my head.
In the end, your paperwork states toss it, that's the plan no matter how strong the spring is.