So far I have only been stringing multi's and sg's. I will string natural gut for the first time over the weekend. I know to avoid string burn and also avoid any kinks in the string. I have an electronic machine with 3 speeds for pulling string. Should I go with the slow speed or the medium speed? I am going 3 pounds over my tension for multi -- sound right? Anything else that I should be aware of? Thanks in advance.