just finished retrofitting the new anonometer with the ''s'' style cups , got it direct from Girard for about $ 130.00 ( simple install ) worked awesome for about two weeks , untill one day without me hitting anything the top part was gone, just a threaded shaft sitting there, called Girard and told them what happened, and they told me no problem we will ship you another one, get this, for free and they payed the shipping, no less, ( to canada) they just told me to put some lock tight on it this time. gotta love suppliers like that