I just wanted to check and be sure that limit mates are actually not configurable. Starting in 2006 we can double click the mate and change the position on a configuration by configuration basis but I see no way to access the dims for the start and stop positions to change their values using equations or configurations. Am I missing something or is this a limitation? I ask because I will be giving a user group presentation that shows a technique for using an algorithmic surface to create a 'limit' mate; the neat part is that the surface can be driven by model geometry to update automatically and/or be changed on a configuration by configuration basis. I just want to be sure that I am not giving a bogus workaround for something that is not, in fact, a prblem in the first place. Thanks in advacne for your response, Ed