you kind of have it backwards,we take our max with a shirt(or raw max)and you should be within a certain percent of board press,floor press,closegrip incline,etc.you first need to know your max,if you compete and use a bench shirt you would use that number,but it's only a guide.it's not in stone,you wold actually use these exrcises to bring up your weak points.that is what westside teaches you...you have to recognize where you get stuck in a particular lift and strengthen that weak point,go to "Elite fitness systems",you'll get a lot of info there.........PeACE