A bug in the plugin has been fixed where the clear radius ratio value was being ignored and defaulting to 1.
This bug was caused by performing a multiplication as the first argument of the Math.pow() function, where
Math.pow(x*y, 2) was behaving as
Math.pow(x*1, 2). Performing the multiplication in a separate line resolved the issue. Thanks to jmmroldan for pointing out this bug. The fix has been uploaded to FIJI, so going to Help -> Update will load the fixed version.