OK, I remember reading that your cue tip must be leather only in the IPT. I remember seeing a few pictures on the IPT site which shows players to be using what looks to be a phhenolic tip break cue. Here are a few attached pictures:
Austin Murphy with the fury JB, looks to be a one piece tip/ferrule
http://www.internationalpooltour.co..._open/photogallery/photos/enlarge/image82.jpg
http://www.internationalpooltour.co...open/photogallery/photos/enlarge/image315.jpg
(just did a quick browse, these were the only 2 photos, I seens a few BK2's but they could be using a leather tip on it I guess, this is the only one that really stands out)
Austin Murphy with the fury JB, looks to be a one piece tip/ferrule
http://www.internationalpooltour.co..._open/photogallery/photos/enlarge/image82.jpg
http://www.internationalpooltour.co...open/photogallery/photos/enlarge/image315.jpg
(just did a quick browse, these were the only 2 photos, I seens a few BK2's but they could be using a leather tip on it I guess, this is the only one that really stands out)