You have misread the rules to your disadvantage. You just split the pool. There is no rounding. You don't even have to split the pool evenly. You could by RAW even go with a 1; (X-1) split with X=your pool. The first could as well be an 6/5 split with +2 to both for the specialization, so 8/7.
Hey, sweet. Extra dice! The thought of tossing extra bullets at someone with 1 in the die pool is kind of amusing (well, 3 after specialization) but you gotta at least look like you're trying, in my head.
