Best leaf springs for A body with Slide a link

I was using Caltrac bars with stock springs. It was better than stock springs with clamps and snubber, but still wouldn't hook consistently. When i switched to Calvert monoleaf springs it hooked every time. I made a pass in the rain. I was annoyed they hadn't stopped racing and I thought it would spin badly, it didn't spin at all. Their stock height spring was too high. I told them, they sent me 1" inch lower, I swapped and sent the stock height back.