Recently purchased a mid range hybrid bicycle. Picked a M frame based on stand over test (the frame rail presses against my crotch and seems like L Frame would be too big). Bare foot I'm about 5'9.5 or 5'10. Inseam is about 30" (31" would be pushing it).

Anyways I was reading that I should adjust my seat so that my knee should line up with the pedal axel(KOPS). I have the seat adjusted back to the max line, but seems like my knee is still a slight bit too forward. How else can I adjust this?can I slide the seat further back that the "max" lines? Am I close enough? Thanks for any input you have. I know I don't have a road bike and I'm just looking to do some riding to get in shape.

UPDATE: Now i measured more on level ground and i am closer to the correct position. As long as im close am i fine?