Just got my instaloc machine today. I bought some hair from Amazon before the machine came so I can practice with it to make sure my understanding of it's mechanics was up to par. First thing I did was check if it worked and what type of speed it was working with. It starts at 12 and that's an understatement because it is very strong, low vibration and fast. You'll notice it may keep going even if you're not pressing the button for a little while, now I believe that is because it's un tangling itself from the hair product to keep the hoe clear, works normal afterwards. The Pic is a before and after using the product. Now, I used it without rotating and though it will work it won't catch all the hair as intended, so please rotate like instructed otherwise your end result will not be as desired. Do not try to go back and forth at the end because you can damage your machine. The hole used is the 6mm smallest attachment, as you can see it works even if the hair is thick, however, be careful doing that because the hair can get jammed even before actually using it and tanlge so take your time. I know thus is long, I'm just passing on my knowledge from using this machine. Oh, one other thing, if you do too many passes it will make the instaloc very tight and not be flexible anymore so if you style afterwards and it's time to take out your hair will be in crazy angles afterwards. I recommend you get a feel for it, the learning curve is literally 2mins as long as your not scared when using it.