Hi I was wanting some advice on how to order rubbers in sort of bulk or bulk stock. I have been usually ordering in the past from a company on ebay for individual machines by kit who I have been happy in terms of service and delivery however I find myself wanting to have rubbers in stock should the need arise. How do others buy their stock of rubbers and if ordering in bulk ... how many does each size need to order? I know games vary greatly as I look over some pfs.. to kinda get an inkling but ... does anyone have rules of thumb and places they shop at? im thinking of ordering with another person or two (we are Canadian ) to help with our bulk purchase

thanks in advance