Tornado Grenade 3 pack recomendations

[MarksInnerDemon]

First I am going to try to get a good price on the grenades themeselves and airsoft inovations as the 3 pack deal, but I am going to spend nearly 40 bucks on shipping from CA to USA then to here. That said it might make more senese to buy 3 direct from one of the APO shippers if they have them if its free shipping.

Add to that I am in a bit of a perplexing situation. We have a lot of people run away from the Grenade in these games as the rooms are short, and the only time you can trap someone is when we head out to a event. I was thinking about the impact version over the timed ones, but I ma just not sure if I don't want 2 impact 1timer, or 3 impact and call it day. Anyone use these in the field and which do you guys prefer?