Hi Guys
I am looking to build a mill but having a hard time choosing a spindle to use with ATC, it will be belt drive so my questions are

1. With a BT30 spindle it needs to have a motor with feedback so it can rotate and locate the tooling because of the slots?

2. Can you run the BT30 spindle without the slots on the nose for easy atc setup without having to use a motor with feedback or will I have slippage issues of tool holder slipping in the spindle?

Thanks
Chris