So here is the 6 month review: These tips (and I can only speak for the #4, which is a 'Medium Hard') don't mushroom and performed as well as my Whitten (I can say the name now) and UltraSkin tips. No touching up/reshaping has been needed. One thing that may be an issue, although I've seen other posters on AZB complain of the same issue with pigskin or leather layered tips: every so often, there seems to be something transferred to the cue ball, like maybe a bit of the layer adhesive(?). Otherwise, these tips are an interesting and seemingly effective innovation, and may outlast natural hide tips, if the tip's layer adhesive holds up.
