I bought a Wind Stabilizer Kit two or three years ago for a Korona 8x20. It does work nicely for those occassions when you have buffetting wind (just be sure to loosen it up before you do any refocussing!!!). It's been some time since I've used it, not due to weather conditions but because of the inconvenience factor. Maybe it's just laziness but I don't think so. My experience says the kit isn't worth the bother except for extreme circumstances.