I know that its best not to use Co2 with an Ion, but what I want to know is, at what point does it become a problem using Co2? I have an air tank but am having trouble finding somewhere to fill it and I have had my Ion for over a month now and have not been able to test fire it. I was thinking of getting one of those little 4oz Co2 tanks just so I can test to see if the Ion actually works. Would this cause any damage to the Ion? I would probably only put like less than 50 paintballs through it, just need to know it works. Thanks.