After with messing with a piece of junk Bushnell window mount for way too many years, I thought there had to be a better way. I finally paired up a Manfrotto 3292 window clamp, with a Manfrotto 3130 pan head and got a super smooth rugged window mount. If I remember correctly, they just screwed together. If you are using a Swarovski spotting scope, no adapter is needed, the mounting foot will clamp right in. This has been a huge help, particularly when using a spotter for antelope in Wyoming. I thought I would share this with you guys if you are looking for something better. If you also have something that's worked well for you, please share it on here.