As belgian, I never use "imperial" system also.
Though, I would oppose making this improvement a priority.
First of all, the metric of the sport overall are in imperial systems (10 yards is clear, 9 meters and 15 centimeter will not ease my understanding of the forward progression even though I can scale what a meter is intuitively and have to think about it when talking about a yard).
The conversion factors for pound to Kg (*2), inches and feet to cm (*10/4; /30) are also quite easy to implement and convert in your head.