They work on break cues. all depends if you want to use without tips. (some leagues have differen't req. Koinnkid sells Dale Chilton D. Eagles- with g-10 and plastic with or with out tips. I have 2 Double eagles 1 g-10 and 1 with plastic -no tips. I've used for like 5 yrs. Just use Diamond or Russian chalk. Ps they play shape well after making the jump shots,short and long. Mark
I tested out a Mark Bear custom jump cue in Valley Forge. It had a G10 ferrule and a Tiger jump tip (can't remember the exact name, but it was the phenolic one with the leather plug in the middle.) This setup was hands down the best I've ever tried. Jumps like crazy, and gives remarkable cueball control. Highly recommended.
I know a guy with a Purpleheart jump cue with a G-10 ferrule and tip and i havent seen anything jump better than that! I just got a brand new break cue with a G-10 ferrule and a White Diamond tip and it hits better than any break cue ive ever hit with.