Sean,
Sure thing, bring folks around. If you come on Monday, there is an open matt for 30 mins at the end of the class so you could use that to show how you guys do things differently.
You can find location and all on the web site but in case you are lazy: YO24 1BJ and google map should give you all you need.
www.york-aikido.org/location.html and
www.york-aikido.org/training.html should answer the rest.
PS: I should have added that everybody here is welcome to come and visit.