You're not near as new at this as I!
I can't remember of course, what Wolfe spring worked in the CZ52. I'm tempted to say the heaviest they have but that may not be right. I found out long ago that, with springs, the full menu was worth the price -- I wouldn't be there unless I had a problem. In the package deals of different weight springs there was a solution somewhere.
My thanks to some unremembered on this board who advised the sharp recoil was fixable with a spring.