I liked my Saucony Freedom ISO, my ISO 2, my A8.I was excited to receive my A9, after my A8 gave up (450mi, not bad for a lightweight shoe).The A9 fit me well, as well as the A8. They even seemed a touch more stable than the A8, which I welcomed.But they come untied, every mile or every 2 miles depending on the day. I looked up on the web how to properly tie shoes (something I never had to do before) so they wouldnt come untied. Didnt quite work. I have to do some nasty double knots. I'm still looking online for ways to tie them so that they wont come undone. But seriously. It shouldnt be that hard.Will be looking for some old A8s to purchase and save for later.------------------------December 2021 update. Well, forget the above. I reused the A8's shoelaces in my A9, problem solved. After 400 miles, I like how they're more durable than the A8. I ordered my second pair (in a color I like less) because the newer Fastswitch just dont do it for me.