Not really, it just depends on what pressure your shock is set at, you can make it so the first shock is soft, then the second just a little stiffer, then in that way the 2nd shock can begin is travel whenever you like, you could have it at the same time, 1/4, 1/2, 3/4,or all the way. it really up to you. The trick is not to have the second one over the end pressure of the first one, because is that happend, then the first one would finnish its travel, then there would be no travel, then finally the 2nd one would begin its stroke.