How refreshing to find someone in the USA asking for metrication. I, and a few others have been pushing the benefits of metric in template guides and cutters for some time, it's not surprising that plunge routing is in it's infancy there, calculating offsets when designing templates in imperial is a nightmare. Another gripe of mine is that most of your routers appear to have small openings, restricting the size of guide. Things will only change when woodworkers start to demand these changes and to realise the benefits, an open mind is required. I'm about to put on my flack jacket!
Nothing but heaven itself is better than a friend who is really a friend. - Plautus