The 1st step ties?

Coach I have a question regarding the 1st step - the L step.

I'm pretty sure as I understand it, it's a lateral step to the play, with toes pointing downfield. Are their circumstances where the step should be gaining ground (ie. on a 45 deg angle)?

I'm just wondering because under Canadian rules the DL has to be 1 yd from the nose of the ball, so we often aren't as concerned with quick upfield penetration. I've experimented a little this spring with my players (and myself), and I haven't really come to any set conclusion on this... lateral vs upfield

Some US teams will also set the OL off the C so they are a bit deeper from the DL... but I doubt it approaches a full yard.

Do you ever recommend gaining some ground with the 1st step?

Would the yard of separation factor into the technique?