Thanks, zero was for sure correct because it was not an issue until later in the job. Also, everyone keeps going to it being bit slippage but I find it hard to believe this is the case as I generally go what most would consider overboard when tightening the collet and the collet was still very tight afterwards. I feel as though it is an issue elsewhere like possibly my Z-axis as I have another post where it was freaking out and making horrible noises and then out of nowhere it worked again.