[johnnyg08]

There are lots of things not specifically covered in the OBR rule book...it's not in PBUC (the def of foul tip is in there with respect to a strike out where the ball might be caught or not) but that's all I could find there. I'd bet a shiny mythical quarter that J/R addresses this...and if I remember this was discussed at length on Rob Drake's old site and the pro guys on there said that if a foul tip were to be "caught" and remain live...it had to go off of F2's glove first...or, I suppose his bare hand...but if that's the case...you're going to have to make a catcher substitution as well.