So heres the thing, basically every inline mounted auxiliary part such as decouplers, batterys, reaction wheels and cargo bays have bugged drag calculations(including those rounded rear hatches but i didnt feel like making a custom plane just to add it to my testing). Any 1 of these parts will effectively double your drag. These bugs are not limited to only the parts ive tested, as far as i can tell, literally every size and shape of said parts is affected. Ive run a couple of tes