measuring movement with flipping

By Ileopsoas, in Warhammer: Diskwars

yesterday in a game a questione rose: since you can always check the range, can you check The movement with a disk took outside The play area by flipping it on The mat?

It says in the rulebook that you can always measure range using the range ruler. Movement is supposed to be one of those guessing elements in the game I think. However there is nothing to stop you from using the range ruler to try and estimate movement for discs.

actually, to add to that, pg 19 of the rulebook says that when you flip a disc, you can only rotate the disc when you are holding it completely upright (at a 90 degree angle from the table) before you can change the direction that the disc is moving, so you aren't allowed to tilt the disc to see if it is going to land where you want it before finishing the flip, you have to make the decision while the disc is at a 90 degree angle from the table, if I wrote this in such a way that it is understandable lol.

my point being that movement is supposed to be partly a guess.