I made a carrier base and I'm having some difficulties. First of all how do you get the CarveWright to differentiate between the carrier and the wood you're carving?? My first attemp ended up cutting into my carrier.

Second the CarveWright would not allow me to use the standard carving bit. I had to use a long bit. I e read a few places this is caused by the sled being to tall. Is this true? any assistance on these 2 issues would be appreciated .