30 inchers here my legs grow like weeds, i have to be careful not to let them get to bulky or then they start geting in the way of eachother when i run. I always mix up my squat stance. My coach preaches a close stance and high reps (20) exploding up on to tip toes, put My power comes from my hips and ass so I always work in wide stance with a good med-heavy weight for 8-10 once a week or throw in some deads and mix it up between sumo and romanian. I like leg press for working my quads I like doing high reps 15-25 with a good heavy weight for me last time I did 3x15 with 7 plates on each side. Then I love my lunges 3-4sets of 10each leg with 225, I wanted to cry after I did them my first time back. Or i drop weight 185 and do every third step for 200yards broken up in 50yard sets. Then to mix up my lunges i drop down to 135 and do shortened lunges step length is about 4-6 inches heel to toe. I recomend these leg workouts to any football players or to athletes seeking explosive speed and power. Oh and ya can forget praying hamstring curls I think I cramp every time I do them.
P.S. I don't do these all in the same day...just for anyone who might think thats what I mean. I just mix mix and match to keep variety on my leg days. Plus it also changes to what I'm trying to improve more now its size and power so more deads and wide squats, once I get closer to season its more lunges and close squats for explosive speed and leg press to keep the bulk on my legs.