if anyone can help me as in how to change the ball like the plain, SL1 or SL2 to another type ? i consider myself as intermediate user where i know how to use afs import and stuff... but i need to know SL1, SL2 and plain is which tex or mdl ? currently i only know roteiro is ball_08.tex... please help as i wanted to import the aerowroteiro found on this forum as well as some other new roteiro from SPARK website.