I had ordered Lethal Springs without knowing the issue of the squeak.... I have since returned them...In speaking with them seems the spring itself is too large at the base causing binding with the sides of the lower control arm. The Lethal springs seem to have the same diameter for the bottom coil, instead of having a progressive wound coil that goes to full diameter as it increases in diameter/winds up.
I was informed they have new springs in development and are out 8-12 weeks before the new testers become available. I have ordered H&R in the meantime, while the Lethal Team sorts the springs out. I will want my ST to be as low as possible and will revert back to the Lethals once they have been tested and all is good. Nothing but good things to say about the team at Lethal in handling my concerns, I will buy from them again.