Being fairly new to paintball, I,m trying to learn as quick as i can. I had heard that kaos - kaos d markers did,nt like fragile paint. Anyways went to my local Walk on, got talking to a staff member about paint was advised to stick with site paint as tournament paint fragile, all well and good I thought. Later in day got talking to a ten year+ paintballer who told me tournament paint at Site not fragile just better fit for marker barrel! like balls would be 0.68 rather than any smaller size likely to affect aim and feet per second. Is this correct? And as site paint brands vary from site to site, would it pay me to get a selection of barrels? Our markers have (I apologize for spelling LOL) auto cocker thread. As I got to buy for 2 of us any ideas what's an average price for a good selection of these barrels?