the key I've found is to smoke a shit load and drink jsut a little, if you get too plastered you will completely waste the high you get from the weed. Get a few shots in you but don't overdo it. Just get like tipsy or a little drunk but not like stumbling or slurring your words or anything, just so you can feel it. For me it doesn't really matter if I smoke before or after or during drinking, I don't ever get sick. The key is to not overdo the drinking. I think people get sick because the get plastered and then smoke an assload and all of a sudden it hits them and they are fucked. If you just get a little drunk and really stoned you will get a nice twisted feeling. So either smoke a lot and then drink, but drink slowly or take a few shots and then smoke.