I started with a single MK4 to use as a mono room mic but during test recording I was so impressed with the balanced sound I decided to get a second one and use these for overheads. This my second pair of these slippers and I love them. 70mph on the highway. I can?t get the product to consistently stick to the surfaces in my bathroom. I run since more than a decade with ``thin flat shoes". Where some fitflops fit looser, these fit perfectly in all the right places and are totally comfy. A size 8 generally fits me perfectly, but my foot sliped all over in these. Or much closer together. I ordered 2 of these racks to ensure I can hold the full 5-50 lb set which gives me some extra room to add in 2. If you did find this review helpful, please leave this review a thumbs up!