If they feel softer then they should are they used springs... like ran on other vehicles or new springs. There's a couple guys at our track that will take new springs and actually compress them overnight to break them in and run them that way and adjust oil wt accordingly.

If you or a friend already have the springs I would say try them out before buying to see if they help.

Otherwise the next setup I would suggest looking at is the Sramos one. I'm pretty close to his setup minus the Fironni pistons and rear springs he's using.