Differential pricing can also be hard to spot when products are not exactly like for like, such as with a slight alteration to the design.

Also in 1999, the logo received a slight alteration.

The rule, a slight alteration to the free guard zone rule, was tested at the event in an attempt to increase offence in the game.

For the history category, we worked out a ranking from 10 down to 1 based principally on league titles won, with some slight alterations.

His meticulous approach created an adaptable group that moves fluidly between slight alterations of formations week in and week out.