Hello everyone, I'm looking to upgrade to a Mirka Deros 6". I am looking to purchase from Amazon since they have an extended return policy, and with hearing a lot about how some of these are faulty, the extended return window gives me extra piece of mind. Unfortunately, the 6" that is on Amazon is a 2.5mm orbit. They do have a 5" one in a 5.0mm orbit, but I prefer the larger size. Is the 2.5mm orbit adequate to be able to remove some stock in a reasonable amount of time? I also haven't seen too much on the smaller orbit as opposed to the larger one. Let me know your thoughts. Thanks!