James,
Why aren’t you a fan of leg curls? Is it because of the concentric ‘emphasis’ it places on the hamstrings as opposed to the eccentric work they do in sprinting?
Admittingly I am not a fan however in a recent diccussion with a professional S/C, he stated that all work in a gym is a form of GPP for a field based athlete so if an exercise can improve the functional qualities of a muscle e.g. increase in myofibral cross-section it would highten sport form through SPP exercises.
What are your thoughts on this?