Hello, My question is about setting router speeds for larger bits. I just purchased a Rockler lock miter bit for routing 3/4 and 5/8ths material. I believe I heard it is a good rule to set rpms slower for larger bits,but I may have made this up myself.Also how does one know the rpm rate of a varible speed bosh router. I have only relied on sound and feel there must be a more accurate way. Thank you Dale