Bulletproof Recoil tips 7 month later

[Mensabum]

I have been playing Bulletproof blue soft for about 7 months now. I noticed a bit of mushrooming on it, by feeling with my fingers it is just noticeable. I took some calipers and measured in two locations, first right by the ferrule, and secondly, at it's widest spot. The difference is approximately 10 thousandths of an inch. Also, when striking the cue ball I have been leaving some pretty aggressive chalk marks on it. They were able to be cleaned up with some Aramith polish, but seemed noticeably worse than with leather tips. I have been using Master chalk so that shouldn't be a problem. Both of these issues seem to surprise me, I never thought the tip wouldn't mushroom, although it is not a great deal, it still has mushroomed a little bit. The marks on the cue ball are a bit disturbing because eventually it will scratch it up. Striking the cue ball with various shots you can hear a difference in sound, the synthetic tip gives more of a ringing sound then the standard leather tips do. I probably play 4 hours a week on my home table. I've attached a photo below, and the mushrooming can be seen easiest on the bottom side of the photo, but can be seen on top or bottom if you look carefully.

Hey Tom, could that be left over from the original shaping of that tip?? Or has it happened over time??

 

[SeniorTom]

Hey Tom, could that be left over from the original shaping of that tip?? Or has it happened over time??

To tell you the truth, I am not sure one way or another, I just assume it was perfectly even when it was installed. The guy that installed it is very meticulous and professional, though. I got to believe it has happened over time, ever so slightly, but not 100% sure. Also, I am going to start playing with a leather tip at home and see how the cue ball looks after some play with the leather tip. The scuffs that were left on the cue ball were more prominent than I would expect from any tip, except for hard abrasive breaking tips.