Is there any info (statistical or otherwise) on the effect of long term SCUBA diving on hearing? thanks, Dan -- Daniel Lakeland: Mathematician, Hacker, SCUBA Diver, Sailor, tech-savvy audiophile. TAKE CARE OF YOUR EARS, STOP OVERAMPLIFYING CONCERTS! The day I left my Mac for my BeBox, I learned the true meaning of SMP. Simply More Processors!