Cowboy, what are your goals? 10-18% is a big variance on bf. If you are say under 15, I'd say you're good to go on either a cutting or bulking cycle. If you're over that, I'd recommend dieting heavy for about a month or so and getting rid of some bf. Doing AAS with high bf, especially something that aromatizes as readily as dbol, will definitely give you gyno problems. Get to 15% bf first, then go for the gear.
Another few things...
...low carbs are for cutting...if you want to build muscle, you need lots of carbs. That's a whole other topic though.
...dbol and test are good together as dbol helps jumpstart the higher androgen levels. However, a test-only cycle, which in essence a test/dbol cycle is, is ok but not optimal. Adding an anabolic like deca durabolin, durabolin, or EQ will be more effective. A good starter stack would be 10 weeks of 500Test, 400 deca and 50Dbol (w1-5).
First decide what your goals are, then we can get more specific on diet, training and AAS stacking.