I use Z Custom cymbals when I want pingy or crisp sounds like the 20" Ride and the 14" MasterSound Hi Hats. For everything else I use A Custom crashes and splashes. As far as cracking... I haven't had any problems with the Z Customs, these are the heaviest cymbals I own and probably the most durable. Also, most places have a 30 day exchange policy for cymbals so don't be afraid of buying a cymbal and trying it out. I've exchanged cymbals several times before finding that right sound.