I use these tie downs all the time. Having to ride several horses in one day, needing to change rapidly from using a spur to not without changing straps is great. Also, often going straight from the saddle to town, I can quickly take them off.
I've used these for years and they are great. Long lasting. Spurs don't move and in fact I just leave them on my same pair of boots all the time and it's so easy!