I've not shot the VP9 yet, or heard anything specifically, so I'm not sure how susceptible it is to limp-wristing (some pistols are more forgiving than others, my G29 for sure). It strikes me as odd that you're having the same very specific issues with two very different pistols, from separate manufacturers - more so because they both seem to be "dropping" the magazine when you're firing. No slight intended by it makes me think there is an operator error in here somewhere.