we used to have a player from SA but he hasn't posted in awhile
Weights/machines are identical for us here in Canada and unfortunately for us we don't know how many machines or ball sets there are. It is all an attempt to get as random as possible.
You have an advantage - the SA lotto lists the machine and ball set used for the draw.
It would be interesting to see if there are any bias's (hope that's a word
) in those sets