Hi Guys, I bought some Cactus V4's, and umbrella, lightstand, and umbrella adapter a while back. They are all working fine, but when I put the wireless receiver on the bottom of the flash, I have to use the little metal shoe thingy to put it on the light stand. The problem is, it just sits real loosely in it. Am I doing this wrong or is there a better way to secure my flash? Can I buy a different one that will work better? I will attach a picture in case I'm not explaining myself clearly. Thanks so much for your help!