The last time I talked to Romano @ RCI he said, "RCI has a lifetime warranty on every shell they make." (Translated: as long as it's a stamped "RCI" shell it doesn't matter how it got cracked. It will be replaced.) But Romano no longer owns RCI. That may have changed. I'd first ask your drum manufacturer of choice about shell warranty and replacement. I ordered my ZEP amber kit directly from Romano / RCI-drilled for LUDWIG classic hardware. They (RCI) even drilled a 1970's era Ludwig rail mount and BD cymbal mount. I paid half of the price buying from RCI verses buying through a Ludwig dealer. RCI makes Ludwig's shells.....But I don't know how Ludwig handles their shell warranties.