Warped keys are a risk on any pbt set on larger keys. It's just inherent to the material. Though, depending on the QA at wherever factory the chances of receiving warped keys may rage drastically from 10% to 90%. Even the best of the best of QA Cherry I have come across some warped or miscast keys on a few occasions. BSP make nice keys, but they could use to retool the 2.75 shift especially since it is almost always off in some way it seems whether with warp or excessive shrink AND make tooling for the common sizes of everything that is missing on their end. Stepping up their QA wouldn't hurt either. Even still as they are they are still one of the top quality keycaps. Whoever is making the new Cherry profile PBTs for Leopold though is kicking their ass at a fraction of the cost. I really want to find out who that factory is.