So as some of you might already know I bought an OEM strap for my Autavia Heritage during my last trip, to be used when I want something slightly dressier and vintage looking than the bracelet that came with my reference. The TH Boutique very kindly helped me with changing the straps, but this is, of course, something I want to do myself without having to run to the closest watchmaker every time I want to change the strap. However, what's the best method of changing strap so it doesn't get scratched on the backside of the lugs? I've for years used a very fine knife to do this, as well as a spring bar pin tool, but I feel like I want to keep my watch away from scratches as good as I can. Or is your philosophy that a few scratches on the backside of the lugs are acceptable since they're never visible anyways? Many thanks in advance! (Obviously, no thread is complete without some nice matching pictures).