Tool setter inconsistencies

Has anyone had any issues with inconsistent Z heights when using the tool setter? It seems certain bits are not measuring correctly off the tool setter.

For example, if i home the machine and set my work z, then start a job that involves multiple tools… some of the tools will cut to the correct/expected depth, but others will not. The issue seems to be mostly with the 1/4 ballnose i’m using (whiteside). I tried replacing the bit but getting the same result. After touching off the tool setter i tried measuring each bit using the paper method and the ballnose nose is about .02’’ too high off the work surface. I even tried slowing the tool setter touch-off speed to 10ipm.

Thanks.