This board always has lively discussions, so let's try this topic...
Prior to a Kickoff, most teams (K) spread out and line up. The kicker places his tee and waits to be handed the ball.
We know that only the one who ultimately kicks the ball may be touching or past the line that is 5 yards behind the ball. (K35 for most situations.) With this in mind, I offer several scenarios for discussion:
1.) In the standard "line up first, then get the ball" formation, the kicker gets the ball, places it, and the RFP sounds. The kicker backs up to 7 yards, as he starts to come forward, one of the other K players (doesn't matter which one) stutter-steps his foot to get started and steps on the K35 before coming forward. By rule, (6-1-3b), this is encroachment. Are you calling it?
2.) Occasionally, we'll see a team stay in the huddle until the kicker gets the ball and places it. The RFP sounds. (I know it is up to the WH to ensure 4 K players are on each side of the ball when it is kicked.) Does your leniency--if you had any--change on your encroachment call for stepping on K35 when the huddle breaks? (K assumes a standard free kick formation prior to the kick.)
3.) What about if K breaks the huddle quickly and runs to the ball to attempt an onside kick?