No problem Rick.
Throw is the frictional pushing of the CB onto an OB which is basically a function of the surface characteristics of the balls and the relative speeds they cross each other. SIT and CIT are really part of a continuum, and a handy way for people to get a grasp of both aspects, which are usually acting in combination, for a net effect. The terms SIT and CIT are largely redundant imho, hence I just use the term throw, and specifically as it relates to its vector aspect left and right on the horizontal plane. Throw on a draw shot actually pushes it upward and gives it some roll spin, but there's little reason to discuss that.
An unfortunate coincidence is that in the UK billiard world, the term throw has been used to mean squirt, or cue ball deflection. I prefer and use the US terminology, which tends to confuse people in my neck of the woods.
Then again, they're easily confused. They don't have a name for throw in the US sense, nor terms for outside and inside english, usually confusing those terms with check and running... the effect a CB has off a rail.
Colin