[tskill]

So is it correct then that under NCAA rules, R can signal for a fair catch without a penalty on a free kick after it has hit the ground, but can NOT do this for a scrimmage kick after it has hit the ground?

Reason I ask, I've read a case play in the 2008 Football Rule Differences book p123:

Play: 4th and 12 on K's 30. After K1's punt lands on team R's 35 and bounds high into the air, R2 gives a fair-catch signal, grabs the ball at his 30 and is tackled there by K7.

Book has, NFHS: Invalid Signal, 5yards PSK, 1st and 10 for R at own 25.
NCAA: Invalid signal, ball is dead where it is recovered. 1st and 10 for R at own 30.

So it would seem (assuming that ruling is correct) that R can signal for a fair catch after the ball hits the ground on a free kick but not a scrimmage kick, is that right?