The cue I have has a certain kind of phenolic (brown weave) type of ferrulle....The cue maker makes them with no tip at all.
In my case I needed a tip (to be BCA legal)
I asked him to take what he uses, make it flat (to accept a tip) and apply some rock hard water buffalo tip on it...
I told him to take the tip down to almost nothing..I just wanted it to be BCA legal...
From a distance it does not look like it has a tip...I have been questioned about 4 or 5 times (twice in Vegas)
I give them a close up of the tip and then it is "play on"