Nay, I've tried all four combinations possible between those two variable and the numbers 1 and 1000... absolutly NO difference. Also, and I'm not sure if this means anything, but when I look at the .glm with ModView, it is quite a bit above the "floor" that is projected with "View/...showing floor" option. The "floor" is below even the lower wings. In contrast, the TIE Fighter that comes with the vehicle tutorial has the "floor" right below the cockpit.
If knowledge is power, then to be unknown is to be unconquerable.