Change Radial Axis in Compass

Hi,

i have data to put in the Compass function. numbers are at a maximum value of 52.

i read here about the "trick" of using a second compass with "fake" axis values in order to redefine the radial axis limit

if i do this and set the limit on 50, it works great, but when i put the limit on 55, it automatically sets the limit to 100. making my graph way too small

i would greatly appreciate your help

thanks