I saw the following statement in the Precision Brand Sof Shoe literature:
"For the driver, it is good standard alignment practice to always have a minimum of 1/8" thick shim pack (using no more than 5 shims) under eac motor foot for motors up to 250hp. For larger motors a minimum of ¼" shim pack thickness is recommended"
I have heard of a maximum number of shims but I don't remember hearing about a minimum shim pack thickness. What would be the reason for that?