I wouldn't worry about playing a warped record on occasion. I've got one or two that deflect about 1/4". If your arm and cartridge track it without flying out of the grooves, I wouldn't sweat it.
One thing I would watch for is extreme woofer pumping caused by warped records. If your speakers are close to being a heavy load on your amp you could experience clipping.
One thing I would watch for is extreme woofer pumping caused by warped records. If your speakers are close to being a heavy load on your amp you could experience clipping.