It is bad, because when you try to shoot it the frozen paintballs go about 5 feet, so just leave you paintballs in a fridge, or a cool room.
I have a Tippmann a-5 as well. I use a flatline barrel as well as the stock system. The flatline barrel tends to be a little aggressive on the paintballs and chopping has been an issue with thin walled paintballs. I go to Dicks sporting goods and buy...
You're tippmann model 98 will use a good variety of paintballs effeciently. I suggest sticking with Rps or draxxus and make sure you check the paint before you buy it. Make sure the shells are void of any dimples,deformities or busted ones. Paintball...