I mean dilation, sorry. What I say is: my "aetherial field" (maybe you find a better term?) causes time to slow down. That makes every distance seem shorter for every object P, that is moved along this distance. But, and this is one of the peculiarities of that field, it works only perpendicular to the gradient (the direction of the greatest rate of increase of the field's potential). As a result it effects only the vector of a movement, that is perpendicular to the line PN, where N is the north pole. Movements along this line remain unaffected. To remind you, that has nothing to do with the speed of light, only with the potential of the AF.
Supposed my description is intelligible -wouldn't that cause the illusion of roundness?