You might also want to check the "ring stop" on the vacuum post and make sure the wand is going down flat on the LP and with just sufficient force to allow the vacuum to suction. If set too low, or if the ring is skewed "ass end down", you might be putting too much pressure on the wand as the vacuum pulls it down.
I've gone through 6 tubes with mine so far and haven't seen a hint of cracking. I do not use alcohol based products, though.
I've gone through 6 tubes with mine so far and haven't seen a hint of cracking. I do not use alcohol based products, though.