I'm currently running some 100% VG, and these are punched using a friends puncher thingy ma-jig. I wouldn't worry about it so much, unless they are the Smoktek PRE-punched cartos. Even then, 50% VG isn't that bad.
I hardly get a dry hit. I usually prime it up in the mornings by take 1-2 small inhales and then go full force. Haven't had any issues yet, it's been about a week and a half.